A method for stacking primary products in a ring-type dehydration vehicle

Abstract

A method for stacking primary products in a ring-type dehydration cart includes the following steps: 1) Several first and second regions are sequentially spaced along the extension direction within a track area; 2) In the first region, N±1 layers of primary products are spaced in multiple columns along the extension direction of the track, with the spacing between adjacent columns gradually increasing along the running direction of the ring-type dehydration cart; 3) In the first region, N layers of primary products are spaced in multiple rows radially along the track, and spaced along the extension direction of the track, with the spacing gradually increasing along the running direction of the ring-type dehydration cart, and N+1 layers of primary products are stacked above the spacing and N-1 layers of primary products are stacked below the spacing; 4) The stacking method in the second region is the same as in the first region, but the number of stacked layers in the second region is less than the number of stacked layers in the first region. Under the same drying and dehydration parameters, the primary products stacked according to this invention can effectively control the cracking rate of the primary products to above 1% and the moisture content to below 0.3%.

Description

Technical Field

[0001] This invention relates to the field of refractory materials, and in particular to a method for stacking primary products in a ring-type dehydration vehicle. Background Technology

[0002] Chemical companies use bauxite as raw material, which is crushed and shaped into primary products, then stacked, dehydrated, and sent to downstream companies as raw materials for the production of products such as refractory materials and brown corundum.

[0003] Currently, after bauxite ore is formed into block-shaped primary products, it is stacked in the area within the track of a ring-type dewatering machine. The ring-type dewatering machine moves along the track to dry and dehydrate the primary products stacked inside.

[0004] Currently, during the drying and dehydration of neatly stacked primary bauxite products, the primary products at the front of the stack are heated first along the moving direction of the ring dehydration cart, while those at the back are heated later. This results in higher humidity and a higher cracking rate in the area where the primary products at the back are located, reaching a scrap rate of about 10%. Moreover, the moisture content of qualified primary products can only reach about 0.5%, which cannot further guarantee product quality.

[0005] Therefore, how to improve the yield of palletized primary products and further reduce their moisture content is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a method for stacking primary products in a ring-type dehydration vehicle. Under the same drying and dehydration parameters, this method can effectively control the cracking rate of primary products to be above 1% and the moisture content to be below 0.3%.

[0007] The technical solution of this invention is: a method for stacking primary products in a ring-type dehydration vehicle, comprising the following steps:

[0008] 1) Several first zones and second zones are sequentially and intermittently set along the track extension direction within the track area of ​​the ring-type dehydration vehicle;

[0009] 2) In the first area, the N±1 layers of primary products are arranged in multiple columns along the track extension direction. Each column contains 2M N±1 layers of primary products, all extending radially along the track. The spacing between adjacent columns of primary products gradually increases along the running direction of the ring dehydration car.

[0010] 3) In the first area, N layers of primary products are arranged in multiple rows along the radial direction of the track. The number of N layers of primary products in each row is 2M. They are arranged at intervals along the extension direction of the track. The intervals gradually increase along the running direction of the ring dehydration car. There are N+1 layers of primary products stacked above the intervals and N-1 layers of primary products stacked below the intervals.

[0011] 4) The palletizing method in the second area is the same as that in the first area, and the number of palletizing layers in the second area is less than the number of palletizing layers in the first area.

[0012] Step 2) The primary products in each column of N±1 layers are connected end to end. There are N layers of primary products stacked below the seam between each column of N+1 layers and N layers of primary products stacked above the seam between each column of N-1 layers.

[0013] Step 1) The number of primary products stacked in the first and second regions is one or more, and the multiple stacks are distributed radially at intervals along the track.

[0014] The first column of primary products in layer N±1 is flush with the starting end of the primary products in layer N, and the last column of primary products in layer N±1 is flush with the ending end of the primary products in layer N.

[0015] The outer edges of the N-layer outer primary product are flush with the outer edges of the N±1-layer primary product, and the inner edges of the N-layer inner primary product are flush with the inner edges of the N±1-layer primary product.

[0016] The 2M refers to four.

[0017] The above technical solution has the following beneficial effects:

[0018] 1. The palletizing method of the present invention involves sequentially and intermittently setting several first and second regions along the track extension direction within the track area of ​​the ring dehydration cart, with different numbers of palletizing layers in the first and second regions. This reduces the height interval of the palletizing along the track extension direction within the track area of ​​the ring dehydration cart. During operation, the amount of steam generated by the alternatingly palletized primary products inside the ring dehydration cart is reduced, which is beneficial for the ring dehydration cart to quickly extract the water vapor formed, especially when the external humidity is high, thus ensuring a dry and high-temperature dehydration environment for the primary products. Furthermore, the palletizing method of this invention, by arranging N±1 layers of primary products in multiple columns along the track extension direction, with each column containing 2M N±1 layers of primary products extending radially along the track, and the spacing between adjacent columns gradually increasing along the running direction of the circular dehydration cart, and by arranging N layers of primary products in multiple rows along the track radially, with each row containing 2M N layers of primary products, also spaced apart along the track extension direction, with these spacings gradually increasing along the running direction of the circular dehydration cart, that is, the density of primary products in a single pallet gradually decreases along the running direction of the circular dehydration cart. This results in a gradual decrease in the amount of steam generated by each pallet during the operation of the circular dehydration cart, facilitating the rapid extraction of water vapor generated by the circular dehydration cart, especially under conditions of high ambient humidity, ensuring a dry and high-temperature dehydration environment for the primary products. In addition to improving the yield of dried and dehydrated primary products, this method can also effectively reduce the moisture content of the dried and dehydrated primary products to below 0.3%, improving product quality.

[0019] 2. The stacking method of the present invention utilizes the primary products stacked on the upper layer to apply force to both ends of the primary products stacked on the lower layer. Combined with the staggered arrangement, it limits the deformation of each layer of primary products in the expansion or contraction state, further reducing the scrap rate of primary products in the drying and dehydration process to about 1%.

[0020] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the stacking process of the present invention;

[0022] Figure 2 for Figure 1 Side view. Detailed Implementation

[0023] Example 1

[0024] See Figure 1 , Figure 2 The method for stacking primary products in a ring-type dehydration vehicle includes the following steps:

[0025] 1) Several first and second zones are sequentially set at intervals along the track extension direction within the track area of ​​the ring-type dehydration vehicle. Typically, the interval between adjacent first and second zones is determined based on the ambient humidity. If the ambient humidity is high, the interval is increased; if the ambient humidity is low, the interval is decreased. Of course, the number of first and second zones is also determined based on the unit output. The number of stacks in the first and second zones can be one or more. If there are multiple stacks, they are distributed radially at intervals along the track, that is, multiple stacks are arranged in a row radially at intervals along the track.

[0026] 2) In the first area, the N±1 layers of primary products are arranged in multiple columns along the track extension direction. Each column contains 2M N±1 layers of primary products, all extending radially along the track. The spacing between adjacent columns of primary products gradually increases along the running direction of the circular dehydration car. Specifically, the N±1 layers are 1, 3, 5, 7, 9, and 11 layers, and are arranged in seven columns along the track extension direction. Each column contains four primary products, which are connected end to end on the same straight line.

[0027] 3) In the first area, N layers of primary products are arranged in multiple rows along the radial direction of the track. Each row contains 2M N layers of primary products, and they are arranged at intervals along the extension direction of the track. The intervals gradually increase along the running direction of the circular dehydration vehicle. There are N+1 layers of primary products stacked above the intervals and N-1 layers of primary products stacked below the intervals. Specifically, N layers are 2, 4, 6, 8, and 10 layers, and they are arranged in five rows along the radial direction of the track. Each row contains four primary products. The outer row of primary products is flush with the outer end of the primary products in the adjacent layer, and the inner row of primary products is flush with the inner end of the primary products in the adjacent layer. The other three rows correspond to the seams between the primary products in the adjacent layers. Correspondingly, primary products are stacked below the seams between the primary products in each column and above the seams between the primary products in each column. The primary products in the first column are flush with the starting end of the adjacent primary products, and the primary products in the last column are flush with the ending end of the adjacent primary products.

[0028] 4) The stacking method in the second area is the same as that in the first area, and the number of stacking layers in the second area is less than that in the first area. Specifically, the number of stacking layers in the second area is 9.

[0029] According to the applicant's tests and verifications, in Chongqing during the summer, the yield of primary dried and dehydrated products using the stacking method of this invention reaches over 99%, with a moisture content of 0.3%. In Chongqing during the winter, the yield of primary dried and dehydrated products using the stacking method of this invention reaches over 99%, with a moisture content of 0.4%.

Claims

1. A method for stacking primary products in a ring-type dehydration vehicle, characterized in that, Includes the following steps: 1) Several first zones and second zones are sequentially and intermittently set along the track extension direction within the track area of ​​the ring-type dehydration vehicle; 2) In the first area, the N±1 layers of primary products are arranged in multiple columns along the track extension direction. Each column contains 2M N±1 layers of primary products, all extending radially along the track. The spacing between adjacent columns of primary products gradually increases along the running direction of the ring dehydration car. 3) In the first area, N layers of primary products are arranged in multiple rows along the radial direction of the track. The number of N layers of primary products in each row is 2M. They are arranged at intervals along the extension direction of the track. The intervals gradually increase along the running direction of the ring dehydration car. There are N+1 layers of primary products stacked above the intervals and N-1 layers of primary products stacked below the intervals. 4) The palletizing method in the second area is the same as that in the first area, and the number of palletizing layers in the second area is less than the number of palletizing layers in the first area.

2. The method for stacking primary products in a ring-type dehydration vehicle according to claim 1, characterized in that: Step 2) The primary products in each column of N±1 layers are connected end to end. There are N layers of primary products stacked below the seam between each column of N+1 layers and N layers of primary products stacked above the seam between each column of N-1 layers.

3. The method for stacking primary products in a ring-type dehydration vehicle according to claim 1, characterized in that: Step 1) The number of primary products stacked in the first and second regions is one or more, and the multiple stacks are distributed radially at intervals along the track.

4. The method for stacking primary products in a ring-type dehydration vehicle according to claim 1, characterized in that: The first column of primary products in layer N±1 is flush with the starting end of the primary products in layer N, and the last column of primary products in layer N±1 is flush with the ending end of the primary products in layer N.

5. The method for stacking primary products in a ring-type dehydration vehicle according to claim 1, characterized in that: The outer edges of the N-layer outer primary product are flush with the outer edges of the N±1-layer primary product, and the inner edges of the N-layer inner primary product are flush with the inner edges of the N±1-layer primary product.

6. The method for stacking primary products in a ring-type dehydration vehicle according to claim 1, characterized in that: The 2M refers to four.

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