Slurry thickening device with gas blowback function

Abstract

The utility model provides a slurry thickening device with a gas blowback function. The slurry thickening device with the gas blowback function comprises a tank body, a partition plate, a filter cartridge, a water outlet pipe, a first control valve, a gas inlet pipe and a second control valve. According to the slurry thickening device with the gas back flushing function, after slurry thickening is completed, discharging is conducted by opening the discharging valve at the bottom of the material bin, at the moment, water in the filter cartridge overflows from the side face of the filter cartridge, back flushing is conducted, then the first control valve is closed, the second control valve is opened, and the gas back flushing function is achieved. And high-pressure gas is introduced to carry out back flushing on the side wall of the filter cartridge, so that the slurry adhered to the side wall of the filter cartridge is further cleaned. The filter cartridge is kept clean, the operation is convenient, the filter cartridge does not need to be repeatedly disassembled and assembled, and the labor force of operators is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of concentrator, specifically relates to a slurry concentrator with gas back flushing. BACKGROUND

[0002] The slurry concentrator is used for discharging water in slurry by filtration to achieve the effect of concentration. During use, thick substances in the slurry stick to the outer wall of the filter cartridge, and the surface of the filter cartridge needs to be cleaned after use. Therefore, the filter cartridge needs to be taken out and cleaned after the concentrator is used for a period of time, which makes the use of the equipment complicated and increases the labor of the operator. SUMMARY

[0003] The utility model discloses a slurry concentrator with gas back flushing, which can solve the problem of inconvenient cleaning of the filter cartridge in the slurry concentrator in the prior art, complicated operation of the equipment during use and high labor intensity of the operator.

[0004] To achieve the above object, the utility model adopts the technical scheme of providing a slurry concentrator with gas back flushing, comprising:

[0005] A tank body;

[0006] A partition plate is installed at the middle part of the tank body in the vertical direction, and the partition plate divides the tank body into an overflow bin and a material bin;

[0007] A filter cartridge comprises a fixed part for sealing connection to the partition plate and a filter part connected to the bottom end of the fixed part;

[0008] A water outlet pipe is connected to the fixed part and is in communication with the overflow bin;

[0009] A first control valve is installed on the water outlet pipe to control the flow state of the water outlet pipe;

[0010] An air inlet pipe is in communication with the fixed part to deliver gas to the inside of the fixed part, and the air inlet pipe is provided with a second control valve to control the flow state of the air inlet pipe.

[0011] In a possible implementation, a gas storage tank is fixedly installed on the side wall of the tank body, and the gas storage tank is in communication with the air inlet pipe to deliver gas to the inside of the air inlet pipe.

[0012] In a possible implementation, the fixed part protrudes from the top of the partition plate, and the water outlet pipe is installed on the top of the fixed part.

[0013] In a possible implementation, a support pipe is fixedly installed on the top of the partition plate, the support pipe extends upwards, a first flange is fixedly installed on the top of the support pipe, and a second flange for sealing connection with the first flange is fixedly installed on the outer side of the fixed part.

[0014] In a possible implementation, the number of filter cartridges is multiple, the multiple filter cartridges are uniformly arranged along the circumference of the tank body, an annular pipe is installed above the multiple filter cartridges, the annular pipe is arranged in communication with the air inlet pipe, and the fixed part on each of the multiple filter cartridges is arranged in communication with the annular pipe.

[0015] In a possible implementation, an annular distribution chute is further arranged on the side wall of the material bin, the top of the annular distribution chute is arranged in space with the partition plate, and a plurality of material falling holes are arranged on the inner side wall and the bottom of the annular distribution chute, the plurality of material falling holes are uniformly arranged along the circumference of the annular distribution chute.

[0016] In a possible implementation, the annular pipe is located above the partition plate and is fixedly installed on the side wall of the overflow bin, the multiple filter cartridges are located inside the annular pipe, and a connecting pipe is arranged in communication on the fixed part of the filter cartridge, the connecting pipe is detachably installed on the annular pipe.

[0017] In a possible implementation, a one-way valve for preventing liquid from flowing into the annular pipe is further arranged on the connecting pipe.

[0018] Compared with the prior art, the scheme shown in the embodiments of the present application has the following beneficial effects: a tank body is arranged, a partition plate is installed inside the tank body, and the outer side wall of the partition plate is sealingly connected with the inner wall of the tank body. The tank body is divided into an overflow bin and a material bin from top to bottom by the partition plate. A drain pipe is arranged in communication on the side wall of the overflow bin, a feeding pipe is installed on the side wall of the material bin, and a discharging valve is further installed on the bottom of the material bin. In the present application, a filter cartridge is installed on the partition plate, a fixed part at the top end of the filter cartridge is sealingly connected to the partition plate, and a filtering part at the bottom end of the filter cartridge is located inside the material bin. An air inlet pipe and a water outlet pipe are further arranged in communication on the fixed part. After the thickening of the slurry is completed, the discharging valve at the bottom of the material bin is opened for discharging, at this time, the water in the filter cartridge overflows from the side of the filter cartridge for backwashing, then the first control valve is closed and the second control valve is opened, high-pressure gas is introduced to blow back the side wall of the filter cartridge, thereby further cleaning the slurry adhered to the side wall of the filter cartridge. The filter cartridge is kept clean, the operation is convenient, the filter cartridge does not need to be repeatedly disassembled and assembled, and the labor of the operator is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structural schematic diagram of a slurry thickener with gas back blowing provided by the embodiments of the present application is shown.

[0020] Figure 2 The installation structure diagram of the filter cartridge and the partition plate provided by the embodiment of the present application.

[0021] Explanation of reference signs:

[0022] 1, tank body; 2, partition plate; 21, support pipe; 3, filter cartridge; 31, fixed part; 311, water outlet pipe; 312, first control valve; 32, filter part; 4, air inlet pipe; 41, second control valve; 5, air storage tank; 6, first flange; 7, second flange; 8, annular pipe; 81, connecting pipe; 811, one-way valve; 9, annular distribution chute. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear and explicit, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0024] Please refer to Figure 1 and Figure 2 , the slurry thickener with gas backflush provided by the present application will be described. The slurry thickener with gas backflush comprises a tank body 1, a partition plate 2, a filter cartridge 3, a water outlet pipe 311, a first control valve 312 and an air inlet pipe 4. The partition plate 2 is installed at the middle part of the tank body 1 along the vertical direction, and the partition plate 2 divides the tank body 1 into an overflow bin and a material bin; the filter cartridge 3 comprises a fixed part 31 for sealing connection to the partition plate 2 and a filter part 32 connected to the bottom end of the fixed part 31; the water outlet pipe 311 is communicated on the fixed part 31 and is arranged in communication with the overflow bin; the first control valve 312 is installed on the water outlet pipe 311 and is used to control the flow state of the water outlet pipe 311; the air inlet pipe 4 is arranged in communication with the fixed part 31 and is used to deliver gas to the inside of the fixed part 31, and the air inlet pipe 4 is provided with a second control valve 41 used to control the flow state of the air inlet pipe 4.

[0025] Compared with the prior art, the slurry thickener with gas back flushing provided by the embodiment has a tank body 1, a partition plate 2 is installed in the tank body 1, and the outer side wall of the partition plate 2 is sealingly connected with the inner wall of the tank body 1. The tank body 1 is divided into an overflow bin and a material bin arranged from top to bottom by the partition plate 2. A drain pipe is communicated and installed on the side wall of the overflow bin, and a feeding pipe is installed on the side wall of the material bin. A discharge valve is further installed at the bottom of the material bin. In the application, a filter cartridge 3 is installed on the partition plate 2, the fixed part 31 at the top end of the filter cartridge 3 is sealingly connected with the partition plate 2, and the filtering part 32 at the bottom end of the filter cartridge 3 is located in the material bin. The air inlet pipe 4 and the water outlet pipe 311 are further communicated and arranged on the fixed part 31. After the slurry thickening is completed, the discharge valve at the bottom of the material bin is opened to unload, at this time, the moisture in the filter cartridge 3 overflows from the side of the filter cartridge 3 to perform back flushing, then the first control valve 312 is closed and the second control valve 41 is opened, high-pressure gas is introduced to back flush the side wall of the filter cartridge 3, so as to further clean the slurry adhered to the side wall of the filter cartridge 3. The filter cartridge 3 is kept clean, the operation is convenient, the filter cartridge 3 does not need to be repeatedly disassembled and assembled, and the labor of the operator is reduced.

[0026] Specifically, in the embodiment, the first control valve 312 and the second control valve 41 are both solenoid valves, and the flow state of the air inlet pipe 4 and the water outlet pipe 311 can be automatically controlled.

[0027] In some embodiments, the tank body 1 can adopt the structure as shown in Figure 1 . Referring to Figure 1 , the side wall of the tank body 1 is fixedly installed with a gas storage tank 5, the gas storage tank 5 is communicated with the air inlet pipe 4, and is used for conveying gas into the air inlet pipe 4. The side wall of the tank body 1 is provided with a mounting bracket for mounting the gas storage tank 5, the gas storage tank 5 is mounted on the mounting bracket, and a U-shaped ring for fixing the gas storage tank 5 is detachably mounted on the mounting bracket, the U-shaped ring is sleeved on the outer side of the gas storage tank 5, the two ends of the U-shaped ring penetrate through the mounting bracket, and nuts are threadedly connected at the two ends of the U-shaped ring, so that the gas storage tank 5 can be fixed to the mounting bracket by tightening the nuts. In the application, the gas storage tank 5 is fixedly installed on the outer side of the tank body 1, high-pressure gas can be filled into the gas storage tank 5, when the gas pressure in the gas storage tank 5 reaches a certain value, the second control valve 41 is opened, air is filled into the filter cartridge 3 through the air inlet pipe 4, and the filter cartridge 3 is back flushed. At the same time, the gas storage tank 5 can be repeatedly filled with air and released, achieving the effect of repeated back flushing.

[0028] Specifically, in the embodiment, the gas storage tank 5 is installed on the side wall of the tank body 1, which can facilitate the construction and installation of the on-site equipment, and can be directly connected with the air compressor installed on the site for use.

[0029] In some embodiments, the fixed part 31 can adopt the structure as shown in Figure 1 , Figure 2The structure shown. See also Figure 1 , Figure 2 The fixed portion 31 protrudes from the top of the partition plate 2, and the water outlet pipe 311 is installed at the top of the fixed portion 31. The top of the fixed portion 31 protrudes from the top of the partition plate 2, and after the filtered water fills the inside of the fixed portion 31 during the thickening process, it is discharged through the water outlet pipe 311. When the discharge valve at the bottom of the material bin is opened, the water pressure inside the filter cartridge 3 increases, thereby increasing the cleaning effect on the side wall of the filter cartridge 3.

[0030] Specifically, in this embodiment, the end of the water outlet pipe 311 away from the fixed portion 31 is provided with a bend that is bent downward, which can guide the filtered water to flow onto the top surface of the partition plate 2.

[0031] In some embodiments, the above-mentioned partition plate 2 can adopt the structure as shown in Figure 1 , Figure 2 See also Figure 1 , Figure 2 A support pipe 21 is fixedly installed at the top of the partition plate 2, the support pipe 21 extends upward, the top of the support pipe 21 is fixedly installed with a first flange 6, and the outer side of the fixed portion 31 is fixedly installed with a second flange 7 for sealing connection with the first flange 6. A clearance hole is formed at the top of the partition plate 2 and communicates with the support pipe 21, the support pipe 21 is sleeved on the outer side of the clearance hole, and the end of the support pipe 21 is sealingly connected to the top of the partition plate 2 by circumferential welding, and the first flange 6 is also sealingly connected to the top end of the support pipe 21. The outer side of the fixed portion 31 is also sealingly connected to the second flange 7, the first flange 6 and the second flange 7 are tightly connected by bolts and nuts, and a sealing ring is also arranged between the first flange 6 and the second flange 7, thereby realizing the sealing connection between the fixed portion 31 and the partition plate 2. The structure is simple and convenient for dismounting and mounting the fixed portion 31 on the partition plate 2. At the same time, through the arrangement of the support pipe 21, the length of the filter cartridge 3 can be increased in the effective height space of the material bin, thereby increasing the water pressure during the later backwashing.

[0032] Preferably, in this embodiment, the filter portion 32 on the filter cartridge 3 is located below the partition plate 2, and the fixed portion 31 on the filter cartridge 3 is located above the partition plate 2, with the partition plate 2 as the boundary. Thus, the filter portion 32 can be fully located inside the material bin, thereby increasing the filtering area.

[0033] In some embodiments, the above-mentioned filter cartridge 3 can adopt the structure as shown in Figure 1 , Figure 2 See also Figure 1 , Figure 2The number of filter cartridges 3 is multiple, the multiple filter cartridges 3 are uniformly and spacedly arranged along the circumference of the tank body 1, and the upper part of the multiple filter cartridges 3 is provided with an annular pipe 8, the annular pipe 8 is arranged in communication with the air inlet pipe 4, and the fixing part 31 on the multiple filter cartridges 3 is arranged in communication with the annular pipe 8. The arrangement of the multiple filter cartridges 3 can enhance the thickening rate of the slurry. In addition, the annular pipe 8 is also arranged in the overflow bin, and the height of the annular pipe 8 is higher than the top of the filter cartridge 3. The annular pipe 8 is arranged in communication with the air inlet pipe 4, high-pressure gas can be filled into the annular pipe 8 through the air inlet pipe 4, and the high-pressure gas is distributed to the inside of the multiple filter cartridges 3 through the annular pipe 8, so that the initial pressure of the multiple filter cartridges 3 is balanced when the high-pressure gas enters the inside of the filter cartridge 3.

[0034] In some embodiments, the material bin can adopt the structure as shown in Figure 1 、 Figure 2 . Referring to Figure 1 、 Figure 2 , the side wall of the material bin is further provided with an annular distribution chute 9, the top of the annular distribution chute 9 is arranged in spaced relation with the partition plate 2, and the inner side wall and the bottom of the annular distribution chute 9 are provided with multiple discharging holes, the multiple discharging holes are uniformly and spacedly arranged along the circumference of the annular distribution chute 9. The annular distribution chute 9 is arranged on the inner wall of the material bin and arranged in communication with the feeding pipe on the material bin. When the feeding pipe transports the slurry into the material bin, the slurry can be uniformly distributed into the material bin through the annular distribution chute 9 and flow out from the inside of the distribution chute through the multiple discharging holes. Specifically, in the embodiment, the top of the annular distribution chute 9 is arranged in spaced relation with the partition plate 2, so that when the material in the inside of the annular distribution chute 9 is too much, the material can overflow from the top of the inner side wall of the annular distribution chute 9, thereby facilitating the addition of material into the material bin. The addition speed of the early-stage material can be accelerated.

[0035] In some embodiments, the annular pipe 8 can adopt the structure as shown in Figure 1 、 Figure 2 . Referring to Figure 1 、 Figure 2The annular pipe 8 is located above the partition plate 2 and is fixedly installed on the side wall of the overflow bin, a plurality of filter cartridges 3 are located inside the annular pipe 8, and a connecting pipe 81 is in communication and arranged on the fixed part 31 of the filter cartridge 3, and the connecting pipe 81 is detachably installed on the annular pipe 8. The annular pipe 8 is fixedly installed on the inner wall of the overflow bin, and a plurality of filter cartridges 3 are located inside the annular pipe 8. The annular pipe 8 and the fixed part 31 of the filter cartridge 3 are connected through the connecting pipe 81, one end of the connecting pipe 81 is fixedly installed on the top of the fixed part 31 of the filter cartridge 3, and an access pipe for docking with the connecting pipe 81 is also fixedly installed and in communication on the annular pipe 8. One end of the connecting pipe 81 is fixedly installed on the fixed part 31 of the filter cartridge 3, and the other end of the connecting pipe 81 is detachably connected to the access pipe through a flexible pipe joint. Specifically, in the embodiment, the specific structure and connection mode of the flexible pipe joint are prior art, which will not be described here. By detachably installing the connecting pipe 81 on the annular pipe 8, the connecting pipe 81 can be removed from the annular pipe 8, and the filter cartridge 3 can be removed from the partition plate 2 alone, which facilitates replacement of the filter element in the later period.

[0036] In some embodiments, the above-mentioned connecting pipe 81 can adopt the structure as shown in Figure 1 、 Figure 2 . Referring to Figure 1 、 Figure 2 Figure 1 Figure 2 , the connecting pipe 81 is also provided with a one-way valve 811 for preventing liquid from flowing into the annular pipe 8. The one-way valve 811 is also in communication and arranged on the connecting pipe 81, and is used to control the connecting pipe 81 to convey gas into the filter cartridge 3, and prevent liquid from flowing into the annular pipe 8 when the slurry in the material bin is concentrated under high pressure, thereby avoiding corrosion and damage to the annular pipe 8 and improving safety during use.

[0037] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A slurry concentrator with gas backflushing, characterized in that The utility model relates to a kind of filter device, including: Tank body (1); Partition (2), it is installed in the middle part of the tank body (1) along vertical direction, the partition (2) is separated into overflow bin and material bin by the tank body (1); Filter cartridge (3), the filter cartridge (3) includes the fixed part (31) for sealing connection to the partition (2) and the filter part (32) connected in the bottom end of the fixed part (31); Water outlet pipe (311) is communicated on the fixed part (31), and is arranged in communication with the overflow bin; First control valve (312) is installed on the water outlet pipe (311), for controlling the flow-through state of the water outlet pipe (311); Air inlet pipe (4) is arranged in communication with the fixed part (31), for conveying gas to the inside of the fixed part (31), and the air inlet pipe (4) is provided with second control valve (41) for controlling the flow-through state of the air inlet pipe (4).

2. The gas backflushed slurry intensifier of claim 1 wherein, The side wall of the tank body (1) is fixedly installed with gas storage tank (5), which is arranged in communication with the air inlet pipe (4) for conveying gas to the inside of the air inlet pipe (4).

3. The gas backflushed slurry intensifier of claim 1 wherein, The fixed part (31) is arranged on the top of the partition (2), and the water outlet pipe (311) is installed on the top of the fixed part (31).

4. The gas backflushed slurry intensifier of claim 3 wherein, The top of the partition (2) is fixedly installed with support pipe (21), which is arranged upwardly, and the top of the support pipe (21) is fixedly installed with first flange (6), and the outer side of the fixed part (31) is fixedly installed with second flange (7) for sealing connection with the first flange (6).

5. The gas backflushed slurry intensifier of claim 1 wherein, The number of the filter cartridge (3) is multiple, and the multiple filter cartridges (3) are uniformly spaced along the circumference of the tank body (1), and the annular pipe (8) is installed above the multiple filter cartridges (3), the annular pipe (8) is arranged in communication with the air inlet pipe (4), and the fixed part (31) of the multiple filter cartridges (3) is arranged in communication with the annular pipe (8).

6. The gas backflushed slurry intensifier of claim 5 wherein, The side wall of the material bin is also provided with annular distribution chute (9), and the top of the annular distribution chute (9) is spaced apart from the partition (2), and the inner side wall and the bottom of the annular distribution chute (9) are provided with multiple material falling holes, and the multiple material falling holes are uniformly spaced along the circumference of the annular distribution chute (9).

7. The gas backflushed slurry intensifier of claim 5 wherein, The annular pipe (8) is located above the partition (2) and is fixedly installed on the side wall of the overflow bin, and the multiple filter cartridges (3) are located inside the annular pipe (8), and the fixed part (31) of the filter cartridge (3) is arranged in communication with the connecting pipe (81), and the connecting pipe (81) is detachably installed on the annular pipe (8).

8. The gas backflushed slurry intensifier of claim 7 wherein, The connecting pipe (81) is also provided with one-way valve (811) for preventing liquid from flowing into the annular pipe (8).

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