Coarse slime separation system
By using a buffer box and a pile of cast stones at the bend of the overflow pipe of the TBS interference bed separator, the problem of easy damage to the overflow pipe bend was solved, thus achieving production continuity and extending the maintenance cycle.
Patent Information
- Application Number
- CN202422676709.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-04
AI Technical Summary
The elbow of the overflow pipe of the TBS interference bed sorting machine is prone to damage, resulting in poor production continuity and long maintenance time.
Buffer boxes are used instead of elbows, combined with cast stone piles and high manganese steel materials to reduce the flow velocity of the overflow mixture and buffer the scouring force. Drainage gates are used for unblocking.
This extends the maintenance cycle of the buffer box and improves the production continuity of coarse coal slime sorting.
Smart Images
Figure CN223454374U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of coal preparation, particularly to a coarse slime separation system. BACKGROUND
[0002] With the gradual improvement of the mechanization degree of coal mining machinery, the coarse slime content in the collected raw coal also gradually increases. The coarse slime mainly comes from the pulverized coal produced in the raw coal mining and transportation links. The amount of the primary coarse slime in China accounts for about 20% of the amount of the raw coal for separation, and about 60% of the fine coal is contained in this part of the coarse slime, which has great recycling value. Therefore, the coarse slime needs to be efficiently separated to increase the yield of the fine coal.
[0003] The TBS interference bed separator has good separation effect, can realize the separation of the deslimed fine coal under the screen and the selection of the spiral fine coal, and can recover the fine coal from the flotation tailings. After the raw coal is deslimed by the desliming screen, the coal slime water under the screen enters the thickening and classifying cyclone, the underflow is separated by the TBS interference bed separator, the TBS fine coal is dehydrated by the high-frequency screen to become the fine coal product, and the overflow mixture of the TBS tailings flows out from the overflow port at the top of the separator, falls along the vertical overflow pipe, and enters the vibrating screen to be dehydrated after passing through the elbow of the overflow pipe.
[0004] However, due to the large vertical drop of the overflow pipe of the TBS interference bed separator of the coal preparation plant, the mixture will wash the overflow pipe, especially the elbow in the middle of the pipe, which is seriously damaged in production, causing the mixture to leak out, and the damage can only be repaired by welding, which takes a long time and seriously affects the continuity of production. UTILITY MODEL CONTENTS
[0005] Therefore, a coarse slime separation system is provided to solve the above technical problems.
[0006] The utility model provides a kind of coarse slime separation system, including TBS interference bed separator, overflow pipe and arc vibrating screen;
[0007] Overflow pipe includes first branch pipe, buffer square box and second branch pipe, the top of buffer square box is provided with feed inlet, one side wall of buffer square box is provided with discharge port, and discharge port is located above vertical mid-plane of buffer square box;
[0008] The input end of the first branch pipe is communicated with the overflow port of the TBS interference bed separator, the output end of the first branch pipe is communicated with the feed inlet of the buffer square box, the input end of the second branch pipe is communicated with the discharge port of the buffer square box, and the output end of the second branch pipe is communicated with the feed inlet of the arc vibrating screen.
[0009] In one embodiment, a cast stone pile is arranged inside the buffer square box, and the distance from the top of the cast stone pile to the bottom of the buffer square box is less than the distance from the discharge port of the buffer square box to the bottom of the buffer square box.
[0010] In one of the embodiments, the distance from the top of the cast stone pile to the bottom of the buffer box is less than 1 / 2 of the distance from the discharge port of the buffer box to the bottom of the buffer box.
[0011] In one of the embodiments, the buffer box is made of high manganese steel.
[0012] In one of the embodiments, the side wall of the buffer box, which is perpendicular to the wall surface with the discharge port and the feeding port, is provided with a material discharge door, which is hinged to the main body of the buffer box.
[0013] The beneficial effects of the present application are as follows: the coarse slime separation system of the present application uses a buffer box to replace an elbow to guide the overflow mixture at the bending position of the overflow pipeline, the overflow mixture entering the buffer box first can be used as buffer material, the flow rate of the first sub-pipeline overflow mixture entering the buffer box can be reduced, and the overflow mixture can reduce the scouring of the buffer box. The buffer box as a guide component has a long maintenance cycle, and the production continuity of the coarse slime separation can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The structure schematic diagram of the coarse slime separation system provided by the present application is shown in the figure.
[0015] Figure 2 The structure schematic diagram of the buffer box is shown in the figure.
[0016] Figure 3 The structure schematic diagram of the buffer box is shown in the figure. Figure 2 The vertical cross-sectional view along the center line of the discharge port is shown in the figure.
[0017] Mark explanation: 100, TBS interference bed separator; 200, overflow pipe; 210, first sub-pipeline; 220, buffer box; 221, feeding port; 222, discharge port; 223, cast stone pile; 224, material discharge door; 230, second sub-pipeline; 300, arc vibrating screen. DETAILED DESCRIPTION
[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.
[0019] It should be noted that in the description of the present application, "up", "down", "top", "bottom", orientation or position relationship is based on the orientation or position relationship shown in the drawings. Figure 1 It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0020] In one embodiment, as shown in Figure 1 and Figure 2 The coarse slime separation system of the embodiment includes a TBS interference bed separator 100, an overflow pipe 200 and an arc vibrating screen 300.
[0021] The overflow pipe 200 includes a first branch pipe 210, a buffer square box 220 and a second branch pipe 230. The buffer square box 220 is provided with a feeding port 221 at the top thereof, and one side wall of the buffer square box 220 is provided with a discharging port 222 which is located above the vertical middle plane of the buffer square box 220.
[0022] The input end of the first branch pipe 210 is in communication with the overflow port of the TBS interference bed separator 100, the output end of the first branch pipe 210 is in communication with the feeding port 221 of the buffer square box 220, the input end of the second branch pipe 230 is in communication with the discharging port 222 of the buffer square box 220, and the output end of the second branch pipe 230 is in communication with the feeding port of the arc vibrating screen 300.
[0023] It should be noted that the overflow port is generally arranged at the top end of the side wall of the TBS interference bed separator 100, and often has a high vertical drop from the discharging port 222 of the overflow pipe 200. Therefore, when the overflow mixture composed of coal and water falls along the overflow pipe 200 from the overflow port, it has a relatively high flow rate, and the elbow of the overflow pipe 200 is subjected to a relatively large scouring force, which is prone to wear.
[0024] The overflow pipe 200 of the coarse slime separation system of the embodiment uses the buffer square box 220 instead of an elbow to guide the overflow mixture at the elbow. During the flow guiding process of the overflow pipe 200, a portion of the overflow mixture is first stored in the buffer square box 220. The stored overflow mixture can serve as buffer material for the overflow mixture flowing into the buffer square box 220 later, thereby reducing the flow rate of the overflow mixture flowing into the buffer square box 220 later, reducing the scouring force of the overflow mixture flowing into the buffer square box 220 later, and further reducing the wear of the buffer square box 220, prolonging the maintenance cycle and ensuring the continuity of production.
[0025] As shown in Figure 3 The buffer square box 220 is internally provided with a cast stone pile 223, and the distance from the top of the cast stone pile 223 to the bottom of the buffer square box 220 is less than the distance from the discharging port 222 of the buffer square box 220 to the bottom of the buffer square box 220. Preferably, the distance from the top of the cast stone pile 223 to the bottom of the buffer square box 220 is less than 1 / 2 of the distance from the discharging port 222 of the buffer square box 220 to the bottom of the buffer square box 220.
[0026] Cast stone is a kind of processed silicate crystalline material, cast stone has good corrosion resistance, wear resistance, its acid and alkali resistance can reach more than 99%, the wear resistance is 5-10 times higher than manganese steel, and several times higher than carbon steel; its Mohs hardness is 7-8, only next to diamond and corundum. The cast stone is arranged in the buffer box 220, which can further reduce the damage of the overflow mixture to the buffer box 220.
[0027] The distance from the top of the cast stone pile 223 to the bottom of the buffer box 220 is less than 1 / 2 of the distance from the discharge port 222 of the buffer box 220 to the bottom of the buffer box 220, then the buffer area formed below the discharge port 222 of the buffer box 220 is formed, the bottom is cast stone, and the overflow mixture is above the cast stone, which realizes the amplification of the buffer effect of the overflow mixture itself under the condition of protecting the bottom of the buffer box 220 from being washed by the cast stone, and can amplify the protection of the buffer box 220.
[0028] In one embodiment, the material of the buffer box 220 is high manganese steel. High manganese steel has high hardness and high wear resistance.
[0029] The side wall of the buffer box 220 perpendicular to the wall surface with the discharge port 222 and the inlet port 221 is provided with a material loosening door 224, and the material loosening door 224 is hinged to the main body of the buffer box 220. The function of the material loosening door 224 is to open the material loosening door 224 to dredge the overflow pipe 200 when the overflow pipe 200 is blocked. The outer side of the material loosening door is provided with a buckle for controlling the locking and opening of the material loosening door 224.
[0030] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A coarse slime separation system characterized by, The TBS interference bed sorting machine (100), the overflow pipe (200) and the arc vibrating screen (300) are included. The overflow pipe (200) includes a first sub-pipe (210), a buffer box (220) and a second sub-pipe (230), the buffer box (220) is provided with a feeding port (221) on the top, and one side wall of the buffer box (220) is provided with a discharging port (222) which is located above the vertical median plane of the buffer box (220). The input end of the first sub-pipe (210) is communicated with the overflow port of the TBS interference bed sorting machine (100), the output end of the first sub-pipe (210) is communicated with the feeding port (221) of the buffer box (220), the input end of the second sub-pipe (230) is communicated with the discharging port (222) of the buffer box (220), and the output end of the second sub-pipe (230) is communicated with the feeding port of the arc vibrating screen (300).
2. The coarse slime separation system of claim 1, wherein, The buffer box (220) is internally provided with a cast stone pile (223), and the distance from the top of the cast stone pile (223) to the bottom of the buffer box (220) is less than the distance from the discharging port (222) of the buffer box (220) to the bottom of the buffer box (220).
3. The coarse slime separation system according to claim 2, wherein, The distance from the top of the cast stone pile (223) to the bottom of the buffer box (220) is less than 1 / 2 of the distance from the discharging port (222) of the buffer box (220) to the bottom of the buffer box (220).
4. The coarse slime separation system according to claim 2 or 3, characterized in that, The buffer box (220) is made of high manganese steel.
5. The coarse slime separation system of claim 4, wherein, The buffer box (220) is provided with a material discharging door (224) on the side wall which is perpendicular to the wall surface with the discharging port (222) and the feeding port (221), and the material discharging door (224) is hinged to the main body of the buffer box (220).