In order to reduce the crushing loss of ceramic grinding balls in cement ball mills, the following points should be paid attention to:

1. When loading the mill with empty warehouse, add materials first and then add the ceramic balls.

China's cement industry has been forced to eliminate the ball mill below 3 meters, so all enterprises in the grinding ball assembly mill, are using electric hoist, lifting and unloading, the drop is more than 3 meters. Ceramic grinding ball is discharged into the bin with cast steel lining plate, which will impact the lining plate and cause different degrees of micro-cracks inside the grinding ball, affecting the service life. Therefore, empty warehouse loading grinding should first add 2~3 tons of bulk cement, in order to ease the unloading.

2. Ceramic grinding ball should not be used in the first bin of ball mill.

Although most of the present cement grinding system adopts pre-crushing equipment, which reduces the particle size of the grinding material a lot, when the particle size of the grinding material is 25mm, the first bin of the ball mill still needs the grinding ball to be in the throwing state, mainly for impact crushing effect, crushing the bulk material into new "grains". At this point, the grinding ball is not only subjected to a strong "reaction force ", but also inevitably hit the mill inside the dense cast steel lining, compartments and other components. Therefore, such conditions are not suitable for ceramic grinding balls with limited toughness. Otherwise, a higher rate of breakage will occur.

3. Shorten the "empty material area" behind the silo board as much as possible.

The cement ball mill cylinder is equipped with a double compartment plate, the front layer is composed of a number of grate plate assembly, the second layer is composed of no grate slot blind plate and the center discharge cone (vent). The fine particles in the front bin can flow into the sandwich layer of the compartment through energy seam, and then pass through the back layer, which rises from the hoisting plate on the board and falls to the outer wall of the middle unloading cone and slides to the next bin (tail bin). The inner wall of the unloading cone is the central vent of the mill. Under the action of the wind speed in the mill, the fine particles falling from the outer wall of the unloading cone will be blown away, leaving a distance from the compartment plate to form a "grinding ball"· the "empty material area" with more and less materials directly affects the effective utilization rate of this warehouse. If this bin is filled with ceramic grinding ball, it will cause collision and wear between grinding ball, grinding ball and steel lining plate, shorten the service life of grinding ball, speed up the rate of broken ball. Therefore, before using ceramic grinding balls, increase the length of the feeder plate as much as possible to make it close to the cylinder, so that the fine particles entering the sandwich layer of the compartment can be quickly picked up and more materials fall into the next bin. At the same time, the central control operation can properly reduce the wind, reduce the central wind speed, shorten the length of "empty material area", reduce the "self-damage" loss of ceramic grinding ball, and increase the effective work.

4. Adjust operation habits to prevent "empty mill" operation.

When ball mill cement grinding system is used in steel ball and steel forging, it is a common operation habit to "add material after starting empty grinding and stop grinding after discharging empty material". However, using ceramic grinding balls, these habits become the most common "killer" of "broken balls". The collision and friction between porcelain ball and steel lining plate will produce numerous micro-cracks, which will accelerate the expansion of cracks and finally lead to grinding ball cracking. Porcelain ball cracked surface, like a sharp edge, split to other grinding ball, no material block and buffer, cause grinding ball more extensive damage, a "ball war" will quickly spread.

Pay attention to the above points, the efficiency of your ball mill will be greatly improved and the cost will be reduced. For more information about the application of ceramic grinding balls please feel free to contact with us: office@chemshun.com, tel:+86-799-6790781, what's app: +86-158-79957696. 

Over 75% of all manufacturing firms in the United States have fewer than 20 employees. The Xometry Small Manufacturing Index (SMI) highlights the outlook of these 190,000+ small businesses on a regular basis.

The latest Q1 2018 SMI results showed that the majority of small manufacturers in the U.S. are more optimistic about the market in the near future than they were a year ago, but are slightly less so than they were in Q3 2017. Headcount has increased or remained the same since 2017 for the majority of the small manufacturers surveyed, and 4 out of 10 are planning to hire more employees in the near future.

• 34% of Xometry manufacturing partners surveyed expect a strong increase in business vs.14%for non-Xometry network manufacturers
• 40% of small manufacturers surveyed said that they are planning to hire more employees in the coming year, while 55% said that they will maintain the same number of employees.
• Over 47% of Xometry manufacturing partners surveyed expect an increase in hiring vs. 30% for non-Xometry network manufacturers

The Small Manufacturing Index, released quarterly by Xometry, takes the pulse of the heart of American manufacturing by analyzing and quantifying the performance of small to mid-size manufacturers. The index is developed through a survey that asks members whether they expect to see growth in business compared to previous months and prior years, what they expect to be their anticipated growth sector, actual hiring and expected hiring trends.

The Small Manufacturing Index is drawn from Xometry’s partner network of small to mid-size manufacturers as well as from out-of-network shops. The index aims to highlight trends over time to provide analysis and predictions on the national outlook for small to mid-size manufacturers.

The Xometry Partner Network provides members with real manufacturing jobs through our online platform without the need for their own marketing, sales, or bidding. Our nationwide network includes over 1,000 machine shops and small and medium-sized manufacturers in over 44 states. We provide product designers and engineers the most efficient way to source high-quality custom parts, with 24/7 access to instant pricing, expected lead time and manufacturability feedback. Our nationwide network of partner manufacturing facilities enables us to maintain consistently fast lead times while offering a broad array of capabilities, including CNC Machining, 3D Printing, Sheet Metal Fabrication, Injection Molding and Urethane Casting. Xometry has over 9,000 customers, including BMW, General Electric and NASA.

Disclaimer

The content appearing on this webpage is for informational purposes only. Xometry makes no representation or warranty of any kind, be it expressed or implied, as to the accuracy, completeness, or validity of the information. Any performance parameters, geometric tolerances, specific design features, quality and types of materials, or processes should not be inferred to represent what will be delivered by third-party suppliers or manufacturers through Xometry’s network. Buyers seeking quotes for parts are responsible for defining the specific requirements for those parts. Please refer to our terms and conditions for more information.

Team XometryThis article was written by various Xometry contributors. Xometry is a leading resource on manufacturing with CNC machining, sheet metal fabrication, 3D printing, injection molding, urethane casting, and more.

Read more articles by Team Xometry

Jul
02

From NAW blog:

A new article by Mark Dancer is live in the NAW Blog: Distributing Ideas: 
What Is the Value of Being Local?  

 

Here is a preview.

As distributors rush to put up e-commerce platforms that can sell anywhere and anytime without human interaction, they are reinventing their business as one that is digital, virtual and data-driven. But, like a retail mall decimated by online shopping, distributors have failed to reposition their most crucial core offering. Distributors are inherently local businesses staffed by humans. Distributors can’t win by being what they once were, but they will lose if they do not redefine the value of being local in our disrupted and increasingly digital world.

Read more here.

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Gift cards are gradually fitting into the most widely utilized and notable methods of payment in the world, this explains why many large, small, and medium businesses have adopted the use of gift cards for their businesses because of the convenience, flexibility, and profits it affords them.

In the fintech world today, there is a whole basket of gift cards where you can make a choice, depending on what you intend to purchase with the card, the cost of purchasing the card, and the shipping cost of the card. Some popular gift cards today include iTunes, Sephora, Stalwart, Amazon, Target, Starbucks, but not excluding Google Play gift cards.  and they all give the gift card holders special access to shop in various offline or online retail stores. Some often choose to redeem these gift cards for cash, USDT, or crypto.

What Determines The Prices Of Google Play Gift Cards?

You are not wrong when you think that the Google Play gift card is one of the most prominent and most used gift cards in Ghana. If you are an android device user, you can utilize Google Play Gift Cards to pay for your e-books, games, music, and android apps on the Google Play store. Google Play gift cards come in many currencies like Euro, USD, CAD, CHF, and denominations ranging from 10,20, 50, 100, 200, and 500.

Google Play Gift cards are traditionally created in two forms, which are either physical cards or E-codes. Physical cards are always more valuable than E-codes. One good thing about the Google Play gift cards is that it has proven simple to use.

As earlier mentioned, it is crucial to understand that Google Play  Gift Cards are created in different currencies and denominations. Therefore, before we can talk about  the price of Google Play Gift Card in Ghana, we must acknowledge that the price of a Google Play Gift Card will most likely depend on some factors like;

1. The intrinsic value of the currency and monetary denomination of the card. Eg:£100 vs $100
2. The different rates are given by the platform where the card is redeemed, for a specific currency and format(physical or E-codes)

Frankly speaking, the question of “how much is Google Play Gift Card in Ghana is rhetoric because it does not have a defined answer. There is no tag price for Google Play Gift Cards at any time because the price of Google Play Gift Cards varies with the varying rates given by the exchange platforms and the different currency value the Google Play Gift Cards come in.

How Much Is Google Play Gift Card In Ghana

 But if you want to check the price of the Google Play Gift Card of any currency in Ghanaian Cedis, at any time, many genuine platforms, such as prestmit, which specializes in gift card trading, can give you the best and correct price value of your Google Play Gift Card in Ghanaian Cedis.

Prestmit has a rate calculator feature on their platform, that provides the recent and best gift card rate in Ghana. Currently, the $50 google play gift card(USA google play E-code: rate 300) is GHS156.25 while the $100 of the same subcategory Is GHS312.50.

Click here to see the price of other types of gift cards.

There is no precise price for Google play gift cards because the price varies with changes in the rates given by the exchange platforms.  Prestmit is a platform of  top priority and interest if you intend to trade your gift cards  securely and hassle-free.

JB Bearing Co ., Ltd., founded in 1982, is a precision bearing manufacturer focusing on R&D , production and sales of bearing, specialized in the production of agricultural machinery bearings, double row angular bearings,automobile bearings.

The company has a prodcution workshop of more than 20000 square meters , 10 high professional technical engineers, and annual production capacity of 6 millon sets of bearings. we use 20 automatic production lines and advanced detection equipment to track and comtrol the whole production process, so as to ensure the stability and consistency of our quality .

Product quality has reach P5 level accuracy, we are OEM supplier of many agricultural machinery manufacturer in China. “JB”bearing brand is recognized as”Shandong famous trademarrk”by the China administration for industry and commerce, awarded with many patent , also passed ISO 9001 : 2015, IATF 16949 international quality system certification. it has set up overseas office in United States, Brazil, South Africa , Russia , Mexcico and other countries.

(Certificate)

Bearings Ranges

On the occasion of New Year, all employees of JB Bearing wishes you health and happiness!

Contact Us:

JB Bearing Co., Ltd.

Add: Panzhuang Industrial Park, Linqing City,Shandong Province

Tel:0086 15552132115

E-mail: tina@jvvb.com

URL: https://jvvb.com/

又到了五月的報稅季，從以前很難用的讀卡機，到現在用手機就能報稅！不過很多租客在報稅時都會產生一些疑問，下面這些常見的租屋報稅問題，你是否遇過呢？讓我們一起來破解迷思吧！
（註：本文接下來介紹的是「租客」申報所得稅的部分，關於房東要繳納的稅請見「房東要繳什麼稅？常見房東報稅問題總整理！」這篇文章）

租屋報稅租客該怎麼報？

以租屋族而言，繳納個人綜合所得稅時，在一般扣除額可以選擇「標準扣除額」或是「列舉扣除額」二擇一來申報租金支出。如果選擇「標準扣除額」，單身每人都可享124,000元的扣除額度，而夫妻合併申報則可以享248,000元的扣除額度，選擇「列舉扣除額」，每一申報戶租金每年扣除數額以12萬元為限！
至於應該選擇哪一種方式？如果列舉扣除額各項項目加總後，金額大於標準扣除額的金額，採用列舉扣除額才會划算！所以如果金額未大於標準扣除額，建議就採用標準扣除額即可，也不需要準備列舉申報的證明文件，直接省去跟房東的攻防戰。另外租金支出將從列舉扣除額改為特別扣除額，額度則由12萬元，提高至18萬元，預計2025年報稅適用。

立即搜尋「可報稅」房源！

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