Powdery adsorbent lossless recovery device based on belt filter

Abstract

The utility model discloses a powdery adsorbent lossless recovery device based on a belt filter, which comprises an elevator, the elevator comprises a frame and a conveyor belt circularly running on the frame, the frame and the conveyor belt are arranged on the periphery of the belt filter in a semi-surrounding manner, and the belt filter is arranged on the frame. The device is used for collecting powdery adsorbents from the tail end of the belt filter and returning the powdery adsorbents to the head end of the same belt filter. According to the utility model, the layout of the hoister is improved, so that the hoister is arranged on the periphery of the belt filter in a semi-surrounding manner, the space overlapping degree of the hoister and the belt filter is high, the occupied area is greatly reduced, and the recovery of powdery adsorbents between the tail end and the head end of the same belt filter can be realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water treatment technical field, concretely relates to a kind of powder adsorbent lossless recovery device based on filter machine. BACKGROUND

[0002] Halogen water treatment is carried out by adopting vacuum belt filter (hereinafter referred to as filter machine) combined with powder adsorbent, which is a kind of effective method at present (such as the Chinese invention patent with publication number CN111825152B discloses a filter machine and its application in lithium extraction from adsorption method halogen water), wherein, powder adsorbent is the key raw material of halogen water treatment, and investment cost is high, so it is very important to recover powder adsorbent losslessly at the tail end of filter machine.

[0003] In order to solve this problem, the Chinese invention patent with publication number CN115261639B discloses a lossless recovery process, a lossless recovery device and a lossless circulation system of powder adsorbent for lithium extraction from halogen water, the lossless recovery process comprises: (1) collecting powder adsorbent at the tail end of filter machine; wherein, powder adsorbent is separated from filter machine by adopting scraping and water washing; (2) adopting elevator to transport the collected powder adsorbent to mixed adsorption tank at the head end of filter machine, the elevator is arranged between the tail end of one filter machine and the head end of another filter machine, and two elevators are connected in series with two filter machines.

[0004] The lifting slope of the elevator used in the process is small, so that the elevator can only be arranged between two filter machines, which not only occupies large area, but also cannot realize adsorbent recovery of single filter machine. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to provide a powder adsorbent lossless recovery device based on filter machine, which can realize powder adsorbent recovery of single filter machine.

[0006] In order to achieve the above-mentioned purpose of the present application, the technical scheme of the utility model is as follows:

[0007] A powder adsorbent lossless recovery device based on filter machine, comprising an elevator, the elevator comprises a rack and a conveyor belt circulating on the rack, the rack and the conveyor belt are arranged in a semi-enclosed manner outside the periphery of the filter machine, for collecting powder adsorbent from the tail end of the filter machine and returning to the head end of the same filter machine.

[0008] The layout of the elevator is improved in the utility model, which is arranged in a semi-enclosed manner outside the periphery of the filter machine, and has high spatial overlap with the filter machine, so that the occupied area is greatly reduced, and powder adsorbent recovery between the tail end and the head end of the same filter machine can be realized.

[0009] Preferably, in the powder adsorbent lossless recovery device, the conveying belt comprises a return section below the belt filter, a reuse section above the head end of the belt filter, and a lifting section connecting the return section and the reuse section.

[0010] The running direction of the return section is consistent with the rotating direction of the filter cloth, and the running direction of the reuse section is consistent with the advancing direction of the filter cloth.

[0011] The return section is used to collect the powder adsorbent from the tail end of the belt filter and reversely transport the powder adsorbent, the lifting section is used to vertically or nearly vertically lift the powder adsorbent at the head end of the belt filter, and the reuse section is used to transfer the powder adsorbent between the conveying belt and the head end of the belt filter.

[0012] The reuse section is almost parallel to the belt filter, in order to avoid the leakage of the powder adsorbent suspension flowing down from the lifting section to the reuse section, preferably, in the powder adsorbent lossless recovery device, a collecting hopper is arranged on the frame at the head end of the belt filter to receive the powder adsorbent falling from the reuse section.

[0013] The top opening of the collecting hopper has an opening width corresponding to or smaller than the length of the reuse section to completely receive the powder adsorbent. Regardless of the opening width of the top opening of the collecting hopper, it is necessary to ensure that the opening of the collecting hopper completely covers the head end of the reuse section, and it is not required that the top opening of the collecting hopper extends to the terminal end of the reuse section, as long as the powder adsorbent on the reuse section is completely collected in the receiving range of the collecting hopper. Further preferably, in the powder adsorbent lossless recovery device, a plurality of flushing pipes are arranged on the collecting hopper or the frame to flush the powder adsorbent from the reuse section and / or the collecting hopper, and the flushing fluid used in the flushing pipes is liquid or gas-water mixed fluid.

[0014] The lower outlet of the collecting hopper is connected to the mixing tank, and the conveying belt conveys the powder adsorbent suspension, so that most of the powder adsorbent can flow into the mixing tank through the collecting hopper, and a small part of the adsorbent remaining on the surface of the conveying belt or the collecting hopper needs to be flushed down by the flushing pipes.

[0015] In order to enable the vertical lifting section to lift the powder adsorbent suspension, preferably, in the powder adsorbent lossless recovery device, the lifting section is a vertical lifting section, and the surface of the conveying belt is provided with a plurality of blocking members arranged in sequence along the running direction of the conveying belt, each blocking member is arranged at an angle of 30-60° with the conveying belt to form a material accumulation groove therebetween.

[0016] Due to the material blocking member arranged on the surface of the conveying belt, the flushing angle of the flushing pipe needs to be paid more attention, that is, at least one flushing pipe is arranged in the opposite direction of the conveying belt running direction to flush the inside of the material accumulation groove.

[0017] As a further preferred, in the above-mentioned powder adsorbent lossless recovery device, the flushing pipe is provided with a plurality of flushing holes, and the flushing directions of the flushing holes on all the flushing pipes can be divided into three types, including the opposite direction of the conveying belt running direction, the perpendicular direction of the conveying belt, and the same direction of the conveying belt running direction.

[0018] The flushing holes on each flushing pipe have at least one of the above-mentioned flushing directions.

[0019] For the flushing pipe for flushing the inside of the material collecting hopper, the flushing direction can be aimed at the inner wall of the material collecting hopper.

[0020] In the powder adsorbent lossless recovery device of the utility model, the tail end of the belt filter is provided with a gas-water mixed unloader, which is used for spraying gas-water mixed fluid to the filter cloth to flush the powder adsorbent on the filter cloth.

[0021] Compared with the simple liquid flushing, the gas-water mixed fluid flushing can greatly save the amount of liquid, reduce the water content in the flushed powder adsorbent suspension, greatly reduce the material leakage amount of the powder adsorbent in the transportation process, and improve the recovery rate of the powder adsorbent.

[0022] As a preferred, in the above-mentioned powder adsorbent lossless recovery device, the gas-water mixed unloader comprises at least one distribution pipe, the distribution pipe is arranged on the rotation path of the filter cloth and is located on the inner side of the filter cloth, and a plurality of distribution holes for spraying gas-water mixed fluid to the filter cloth are formed in the distribution pipe.

[0023] The inside flushing can promote the rapid separation of the powder adsorbent and the filter cloth, the gas-water mixed fluid sprayed from the distribution hole can be intermittently sprayed or continuously sprayed, and the utility model has no special requirements therefor, which is determined according to the distribution of the powder adsorbent on the filter cloth; when the intermittent spraying mode is adopted, several distribution pipes can be arranged to ensure the spraying area.

[0024] As a preferred, in the above-mentioned powder adsorbent lossless recovery device, the distribution pipe is arranged close to, close to or tensioned to the filter cloth; the three arrangement modes can be used simultaneously or at least one of them can be selected. In a more preferred case, the distribution pipe is used to tension the filter cloth, and the distribution pipe can be sprayed in the state that the filter cloth changes direction, and the flushing effect is better.

[0025] Compared with the prior art, the technical effect of the utility model is embodied in:

[0026] (1) The utility model discloses the layout of the elevator has been improved, makes it present half surrounded and is located the outer periphery of the belt filter, and the belt filter is overlapped in space degree is high, wherein, the backhaul section is located the below of the belt filter, is used to collect the powdery adsorbent from the tail end of the belt filter and transports it reversely, and the lifting section is used to carry out vertical lifting or close to vertical lifting to the powdery adsorbent at the first end of the belt filter, and the recycling section is located the above of the belt filter, is used to realize the transfer of the powdery adsorbent between the conveyer belt and the first end of the belt filter, the whole elevator not only greatly reduces the floor space, but also can realize the powdery adsorbent recovery between the tail end and the first end of the same belt filter.

[0027] (2) In the utility model, in order to avoid the powdery adsorbent suspension from the lifting section to enter the recycling section and appear the material leakage of disorderly flowing down, on the first end of the belt filter, the rack is equipped with the material collecting hopper for receiving the powdery adsorbent from the recycling section, and the top opening width of the material collecting hopper is equivalent to the length of the recycling section, so as to completely receive the adsorbent.

[0028] (3) In the utility model, the tail end of the belt filter is equipped with the air-water mixed unloader, which is used for spraying air-water mixed fluid to the filter cloth to flush down the powdery adsorbent on the filter cloth, compared with the pure liquid flushing, the air-water mixed fluid flushing can greatly save the amount of liquid, and can reduce the water content in the flushed down powdery adsorbent suspension, greatly reduce the material leakage amount of the powdery adsorbent in the transfer process, and improve the recovery rate of the powdery adsorbent. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structure schematic view of the utility model of a kind of powdery adsorbent lossless recovery device based on belt filter;

[0030] Figure 2 It is Figure 1 Structure schematic view of the utility model in another perspective;

[0031] Figure 3 It is the water flushing direction schematic view of flushing pipeline;

[0032] Figure 4 It is another structure schematic view of the utility model of a kind of powdery adsorbent lossless recovery device based on belt filter;

[0033] Figure 5 It is Figure 4 The enlarged view of part A in the utility model; DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be further explained in detail in combination with the drawings and examples.

[0035] Example 1

[0036] As Figure 1 and Figure 2 shown, the embodiment of the device for non-destructive recovery of powdered adsorbent based on a belt filter includes a hoist, which includes a rack 31 and a conveyor belt 32 that runs in a loop on the rack 31, and both the rack and the conveyor belt are semi-enclosed around the outer periphery of the belt filter; according to the different positions, the conveyor belt 32 includes a return section 32a below the belt filter 1, a reuse section 32c above the first end of the belt filter 1, and a lifting section 32b connecting the return section 32a and the reuse section 32c; wherein the running direction of the return section 32a (referring to the side facing the belt filter 1) is consistent with the rotation direction of the filter cloth 11, the lifting section 32b is a vertical lifting section 32b, and the running direction of the reuse section 32c (referring to the side facing the belt filter 1) is consistent with the advancing direction of the filter cloth 11.

[0037] Since the lifting section 32b is vertical lifting, the surface of the conveyor belt 32 is provided with a plurality of material blocking pieces 33 arranged in sequence along the running direction of the conveyor belt 32, and each material blocking piece 33 is arranged at an angle (optionally 30-60° angle, which is not particularly required in this embodiment) with the conveyor belt 32 to form a material accumulation groove therebetween, so that the conveyor belt 32 can vertically lift the suspension of powdered adsorbent upward.

[0038] In order to prevent the suspension of powdered adsorbent on the lifting section 32b from being lost after entering the reuse section 32c, as Figure 2 shown, at the first end of the belt filter 1, a material collecting hopper 34 is arranged on the rack 31, and the top opening width of the material collecting hopper 34 is comparable to the length of the reuse section 32c, which is used to receive the suspension of powdered adsorbent falling from the reuse section 32c.

[0039] Similarly, in order to prevent powdered adsorbent from adhering and remaining on the conveyor belt 32, a flushing pipe 35 is arranged on the material collecting hopper 34 for flushing the powdered adsorbent from the reuse section 32c; the number of flushing pipes 35 is not limited in this embodiment, and the flushing fluid used by the flushing pipe 35 can be a liquid (such as a stock solution) or a gas-water mixed fluid, and this embodiment also has no requirements.

[0040] It should be noted that since the surface of the conveyor belt 32 is provided with the material blocking piece 33, more attention should be paid to the flushing angle of the flushing pipe 35 (the flushing directions of different flushing pipes 35 can be the same or different), that is, at least one flushing pipe 35 has a flushing direction opposite to the running direction of the conveyor belt 32, so as to flush the material accumulation groove as much as possible.

[0041] In a more preferred case, as Figure 3As shown, all the flushing holes on each flushing pipe 35 have three flushing directions: opposite to the running direction of the conveying belt 32, perpendicular to the conveying belt 32, and the same as the running direction of the conveying belt 32. In this way, the inside of the material accumulation groove and the two sides of the material blocking member 33 can be fully flushed.

[0042] Similarly, the flushing pipe 35 for flushing the inner wall of the collecting hopper 34 can also have multiple different flushing directions.

[0043] Obviously, flushing holes with different flushing directions can be arranged on the same flushing pipe 35 at the same time, or can be dispersedly arranged on different flushing pipes 35, and the present embodiment has no special requirements therefor.

[0044] On the return path of the conveying belt 32, the rack 31 can be provided with a dust cover 36 at the recycling section 32c, the lifting section 32b, etc.

[0045] The working principle of the lossless recycling device for powdery adsorbent based on the belt filter of the present embodiment is as follows:

[0046] When the filter cloth runs to the tail end of the belt filter 1, the powdery adsorbent on the filter cloth 11 is scraped off and flushed to the return section 32a of the conveying belt 32, and falls between the adjacent material blocking members 33; when running to the lifting section 32b along with the conveying belt 32, the suspension of powdery adsorbent is concentrated in the material accumulation groove formed between the conveying belt 32 and the material blocking member 33; when the conveying belt 32 runs to the recycling section 32c, the suspension of powdery adsorbent falls into the collecting hopper 34 under the action of gravity, and falls into the mixing tank at the head end of the belt filter 1 through the lower outlet of the collecting hopper 34 for reuse; the flushing pipe 35 flushes the surface of the conveying belt 34, the inside of the material accumulation groove, and the two sides of the material blocking member 33 to prevent the powdery adsorbent from remaining.

[0047] Example 2

[0048] As shown in Figure 4 and Figure 5 The lossless recycling device for powdery adsorbent based on the belt filter of the present embodiment has basically the same structure as that of Example 1, and the difference is that:

[0049] The tail end of the belt filter 1 is provided with a gas-water mixed discharger 2, which comprises at least one distribution pipeline 21; the filter cloth 11 rotates at the tail end of the belt filter 1, and the at least one distribution pipeline 21 is arranged at the rotating position of the filter cloth 11 or on the rotating path of the filter cloth 11; the distribution pipeline 21 is inside the filter cloth 11 and can be close to or in contact with the filter cloth 11 or directly participate in the tensioning of the filter cloth 11; a plurality of distribution holes for spraying gas-water mixed fluid to the filter cloth 11 are formed on each distribution pipeline 21, and the number of the distribution holes is appropriate to cover the width of the filter cloth 11; the gas-water mixed fluid sprayed from the distribution holes can be intermittent or continuous, and the embodiment has no requirement thereon.

[0050] In the embodiment, the gas-water mixed fluid is composed of gas and liquid, the gas can be air, and the liquid can be the original liquid (the same as the original liquid treated at the head end of the belt filter 1).

Claims

1. A non-destructive recovery device of powdered sorbent based on a belt filter, comprising an elevator, characterized in that, The lifting machine comprises a frame (31) and a conveying belt (32) circulating on the frame (31), and the frame (31) and the conveying belt (32) are arranged in a semi-enclosed manner on the outer periphery of the belt filter (1) to collect the powdery adsorbent from the tail end of the belt filter (1) and return it to the head end of the belt filter (1).

2. The apparatus for lossless recovery of pulverized sorbent of claim 1, wherein, The conveying belt (32) comprises a return section (32a) below the belt filter (1), a reuse section (32c) above the head end of the belt filter (1), and a lifting section (32b) connecting the return section (32a) and the reuse section (32c). The running direction of the return section (32a) is consistent with the rotating direction of the filter cloth (11), and the running direction of the reuse section (32c) is consistent with the advancing direction of the filter cloth (11).

3. The apparatus for lossless recovery of pulverized sorbent of claim 2, wherein, At the head end of the belt filter (1), the frame (31) is provided with a collecting hopper (34) for receiving the powdery adsorbent falling from the reuse section (32c). The opening width of the top opening of the collecting hopper (34) is equivalent to or smaller than the length of the reuse section (32c).

4. The apparatus for lossless recovery of pulverized sorbent of claim 3, wherein, The collecting hopper (34) or the frame (31) is provided with a plurality of flushing pipes (35) for flushing the powdery adsorbent from the reuse section and / or the collecting hopper, and the flushing fluid used in the flushing pipes (35) is liquid or gas-water mixed fluid.

5. The apparatus of claim 4, wherein the powder adsorbent is recovered without loss. The flushing direction of at least one flushing pipe (35) is opposite to the running direction of the conveying belt (32).

6. The apparatus of claim 5, wherein the powder adsorbent is recovered without loss. The flushing pipes (35) are provided with a plurality of flushing holes, and the flushing directions of the flushing holes on all the flushing pipes (35) include the opposite direction, the perpendicular direction, and the same direction as the running direction of the conveying belt (32). Each flushing hole on each flushing pipe (35) has at least one of the above flushing directions.

7. The apparatus of claim 2, wherein the apparatus is configured to recover the powder adsorbent without loss. The lifting section (32b) is a vertical lifting section, and the conveying belt (32) is provided with a plurality of material blocking pieces (33) arranged in sequence along the running direction of the conveying belt (32), and each material blocking piece (33) is arranged at an angle of 30-60° with the conveying belt (32) to form a material accumulation groove therebetween.

8. The apparatus of claim 1, wherein the apparatus is configured to recover the powder adsorbent without loss. The tail end of the belt filter (1) is provided with a gas-water mixed discharger (2) for spraying gas-water mixed fluid to the filter cloth (11) to flush the powdery adsorbent on the filter cloth (11) down.

9. The apparatus of claim 8, wherein the powder adsorbent is recovered without loss. The gas-water mixed discharger (2) comprises at least one distribution pipe (21), the distribution pipe (21) is arranged on the rotating path of the filter cloth (11) and on the inner side of the filter cloth (11), and a plurality of distribution holes for spraying gas-water mixed fluid to the filter cloth (11) are formed in the distribution pipe (21).

10. The apparatus of claim 9, wherein the powder adsorbent is recovered without loss. The distribution pipe (21) is arranged close to, in close contact with, or in tension with the filter cloth (11).

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