Device for recycling valuable elements by utilizing acid waste water of abandoned mine

Abstract

The invention provides a device for recycling valuable elements by utilizing acid waste water of a waste mine, and relates to the technical field of recycling devices. A top cover is fixed at the top of the treatment box, a pipeline for filling sewage and an additive adding funnel are welded on the top cover, a bottom cover is fixed at the bottom of the treatment box, a filter screen seat is fixed in the treatment box, and an iron filter screen is fixed on the filter screen seat. According to the flexible sealing and deslagging mechanism, a sealing assembly is composed of a second spring rod and a first sealing plate and can be pushed by the elastic force of the second spring rod to seal a deslagging opening of the treatment box, and gas leakage is prevented; the collecting assembly is composed of a collecting box, a second sealing plate and a stress block, when the cleaning brush moves rightwards, the stress block can be extruded to enable the second sealing plate to rotate, so that the residue discharging opening is opened, residues slide into the collecting box, flexible residue discharging is achieved, and after the collecting box is taken down, the second sealing plate can be automatically sealed under the action of a coil spring, and gas in the residues is prevented from leaking out.

Description

Technical Field

[0001] The invention relates to the technical field of recovery devices, and in particular to a device for recovering valuable elements from acidic wastewater from abandoned mines. Background Art

[0002] Copper metal plays an important role in national economic life and industrial production, but a large amount of copper-containing wastewater is generated during copper mining and production. If it is discharged into the environment without treatment, copper ions will cause harm to the human body through water migration, soil accumulation and accumulation and amplification effects of the food chain, leading to abdominal pain, vomiting, and even cirrhosis of the liver. At the same time, given the high economic value of copper metal, direct discharge of copper ions in copper mine wastewater without recycling will cause a great waste of resources.

[0003] The existing recovery device needs to filter the residue during recovery, and the residue needs to be taken out after filtering. In the process of taking out the residue, the gas in the wastewater leaks seriously, affecting the health of the staff; when treating the wastewater, additives need to be used for decomposition. During the decomposition process, it is impossible to achieve sufficient mixing of the wastewater and the additives through multiple mixing structures.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a device for recovering valuable elements from acidic wastewater from abandoned mines is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a device for recovering valuable elements using acidic wastewater from abandoned mines, so as to solve the problem that the existing recovery device needs to filter the residue during recovery, and the residue needs to be taken out after filtering. In the process of taking out the residue, the gas in the wastewater leaks seriously, affecting the health of the workers; when treating the wastewater, additives need to be used for decomposition, and during the decomposition process, the wastewater and the additives cannot be fully mixed through multiple mixing structures.

[0006] The present invention provides a device for recovering valuable elements by utilizing acid wastewater from abandoned mines, specifically comprising: a treatment box; a top cover is fixed on the top of the treatment box, a pipe for filling sewage and an additive adding funnel are welded on the top cover, a bottom cover is fixed on the bottom of the treatment box, a filter screen seat is fixed inside the treatment box, an iron filter screen is fixed on the filter screen seat; a threaded rod is rotatably arranged on the treatment box, a second motor is fixed on the left end face of the treatment box, and the output shaft of the second motor is fixed on the threaded rod; a fixed block with a rectangular block structure is threadedly connected on the threaded rod, the front end face and the rear end face of the fixed block are respectively in contact with the front end face and the rear end face of the inner wall of the treatment box, two second electric cylinders are fixed on the bottom end face of the fixed block, the protruding ends of the two second electric cylinders are both fixed on a cleaning brush, and the cleaning brush is in contact with the top end face of the filter screen seat.

[0007] Furthermore, a sealing assembly is installed on the processing box, and the sealing assembly consists of a second spring rod and a first sealing plate. Two second spring rods are fixed on the processing box, and the lower ends of the two second spring rods are fixed on the first sealing plate. The first sealing plate is a rectangular plate structure, and the first sealing plate is the same size as the slag discharge port of the processing box.

[0008] Furthermore, when the two second spring rods are fully extended, the first sealing plate is located at the slag discharge port on the processing box, and the slag discharge port is in a sealed state.

[0009] Furthermore, a collecting assembly is fixed on the processing box, and the collecting assembly consists of a collecting box, a second sealing plate and a force-bearing block. A second sealing plate is rotatably provided on the collecting box, and a coil spring is installed on the processing box for rotating the second sealing plate clockwise to close. When the second sealing plate is closed under the drive of the coil spring, the processing box is in a sealed state.

[0010] Furthermore, two force blocks are welded to the top end surface of the second sealing plate, both of which are right-angled trapezoidal block structures. The top ends of the two force blocks are elastically in contact with the bottom end surface of the first sealing plate, and the elastic force of the coil spring is greater than the elastic force of the two second spring rods.

[0011] Furthermore, when the cleaning brush moves to the right, the cleaning brush contacts the inclined surfaces of the two force-bearing blocks.

[0012] Furthermore, a mixing assembly is installed on the processing box, and the mixing assembly is composed of a rotating shaft, an impeller, a first motor, a mounting block, a first spring rod and an auxiliary plate. A rotating shaft rotates on the processing box, and an impeller is fixed on the rotating shaft. A first motor is fixed on the rear end face of the processing box, and the output shaft of the first motor is fixed on the rotating shaft.

[0013] Furthermore, a mounting block is fixed to the left end surface and the right end surface of the inner wall of the processing box, two first spring rods are fixed to the top surface of each mounting block, and the protruding ends of the four first spring rods are fixed to the auxiliary plate.

[0014] Furthermore, the impeller is in elastic contact with the auxiliary plate, and when the impeller rotates, the auxiliary plate is in an up and down reciprocating motion state.

[0015] Furthermore, a blocking assembly is installed on the processing box, and the blocking assembly consists of a blocking block, a first electric cylinder and a blocking plate. A blocking block is fixed to the left end face and the right end face of the inner wall of the processing box, and the two blocking blocks are located below the mounting block. The front end face and the rear end face of the two blocking blocks are respectively in contact with the front end face and the rear end face of the inner wall of the processing box; two first electric cylinders are fixed to the left end face and the right end face of the inner wall of the processing box, a blocking plate is fixed to the protruding ends of the two first electric cylinders on the left, and a blocking plate is also fixed to the protruding ends of the two first electric cylinders on the right, and the top ends of the two blocking plates are respectively in contact with the bottom ends of the two blocking blocks, and when the four first electric cylinders are extended, the inner sides of the two blocking plates are in contact, and at this time the interior of the processing box is divided into two areas.

[0016] Furthermore, the two blocking blocks are both right-angled triangle block structures.

[0017] Compared with the prior art, the present invention has the following beneficial effects: Efficient debris cleaning and filtering: By setting up the threaded rod, the second motor, the fixed block, the second electric cylinder and the cleaning brush, the automatic cleaning of the debris on the filter net is realized. The cleaning brush can not only move to the right under the drive of the threaded rod to push the residue on the filter net to the right, but also adjust downward to compensate through the extension of the second electric cylinder to ensure the cleaning effect.

[0018] Flexible sealing and slag discharge mechanism: The sealing assembly is composed of a second spring rod and a first sealing plate, which can complete the sealing of the slag discharge port of the processing box under the push of the elastic force of the second spring rod to prevent gas leakage.

[0019] The collecting assembly consists of a collecting box, a second sealing plate and a force block. When the cleaning brush moves to the right, it squeezes the force block to rotate the second sealing plate, thereby opening the slag discharge port, and the residue slides into the collecting box to achieve flexible slag discharge. After removing the collecting box, the second sealing plate can automatically seal under the action of the coil spring to prevent the gas in the residue from leaking out.

[0020] Optimized mixing effect: The mixing assembly consists of a rotating shaft, an impeller, a first motor, a mounting block, a first spring rod and an auxiliary plate. The first motor drives the impeller to rotate to achieve sufficient mixing of sewage and additives; the auxiliary plate reciprocates up and down under the elastic force of the first spring rod, further enhancing the mixing effect and improving the extraction efficiency.

[0021] Convenient partition processing and recovery of valuable elements: The blocking assembly consists of a blocking block, a first electric cylinder and a blocking plate. By controlling the extension of the first electric cylinder, the interior of the processing box can be divided into two areas.

[0022] When the valuable elements on the bottom cover are taken out, the two blocking plates complete the separation of the treatment box, so that the separated sewage can be decomposed again, thus improving resource utilization.

[0023] The blocking block is designed as a right-angled triangle block structure, which avoids the residue of sediment on the two blocking blocks and keeps the equipment clean and running efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0025] In the attached picture: Figure 1 The axial structural schematic diagram of the device for recovering valuable elements by using acid wastewater from abandoned mines according to the present invention is shown; Figure 2 The schematic diagram of the partially cutaway axial structure of the device for recovering valuable elements from acidic wastewater from abandoned mines according to the present invention is shown; Figure 3 It is shown that according to the present invention Figure 2 Schematic diagram of the main structure; Figure 4 It is shown that according to the present invention Figure 3 A schematic diagram of the enlarged structure at point A; Figure 5 It is shown that according to the present invention Figure 3 A schematic diagram of the enlarged structure at B; Figure 6 It is shown that according to the present invention Figure 3 A schematic diagram of the enlarged structure at C; Figure 7 The axial structural schematic diagram of the mixing assembly according to the present invention is shown; Figure 8 The axial structural schematic diagram of the threaded rod, the second motor, the fixing block, the second electric cylinder and the cleaning brush according to the present invention is shown.

[0026] Reference numerals list 1. Processing box; 101. Top cover; 102. Bottom cover; 2. Mixing assembly; 201. Rotating shaft; 202. Impeller; 203. First motor; 204. Mounting block; 205. First spring rod; 206. Auxiliary plate; 3. Blocking assembly; 301. Blocking block; 302. First electric cylinder; 303. Blocking plate; 4. Filter seat; 5. Sealing assembly; 501. second spring rod; 502. first sealing plate; 6. Collection assembly; 601. Collection box; 602. Second sealing plate; 603. Force bearing block; 701, threaded rod; 702, second motor; 703, fixing block; 704, second electric cylinder; 705, cleaning brush. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meanings as commonly understood by those skilled in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless the embodiments of the present invention clearly define such meanings.

[0029] The words "first", "second" and similar words used in the embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The words "one", "one" or "the" and similar words do not indicate a quantity limitation, but indicate the existence of at least one. Similarly, the words "include" or "comprise" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. In the following description, the spatial and directional terms such as "upper", "lower", "front", "back", "top", "bottom", "vertical" and "horizontal" may be used to describe the embodiments of the present invention, but it should be understood that these terms are only for the convenience of describing the embodiments shown in the figures, and do not require the actual device to be constructed or operated in a specific orientation. In the following description, the use of terms such as "connect", "couple", "fix" and "attach" may refer to the direct connection between two elements or structures without other elements or structures, or may refer to the indirect connection between two elements or structures through an intermediate element or structure, unless otherwise clearly stated in this article. Example

[0030] As attached Figure 1 To Attachment Figure 8 As shown: The present invention provides a device for recovering valuable elements by using acid wastewater from abandoned mines, comprising: a treatment box 1; a top cover 101 is fixed on the top of the treatment box 1, a pipe for filling sewage and an additive adding funnel are welded on the top cover 101, a bottom cover 102 is fixed on the bottom of the treatment box 1, a filter screen seat 4 is fixed inside the treatment box 1, and an iron filter screen is fixed on the filter screen seat 4; a threaded rod 701 is rotatably arranged on the treatment box 1, a second motor 702 is fixed on the left end face of the treatment box 1, and the output shaft of the second motor 702 is fixed on the threaded rod 701; a rectangular block structure is threadedly connected to the threaded rod 701 The fixed block 703, the front end face and the rear end face of the fixed block 703 are in contact with the front end face and the rear end face of the inner wall of the processing box 1 respectively, and two second electric cylinders 704 are fixed to the bottom end face of the fixed block 703. The protruding ends of the two second electric cylinders 704 are fixed on the cleaning brush 705, and the cleaning brush 705 is in contact with the top end surface of the filter seat 4. When cleaning debris, the second motor 702 is controlled to rotate, and the cleaning brush 705 moves to the right under the drive of the threaded rod 701. At this time, the residue on the filter can be pushed to the right. When the cleaning brush 705 is worn, the two second electric cylinders 704 are controlled to extend. At this time, the downward adjustment compensation of the cleaning brush 705 can be achieved.

[0031] Among them, a sealing assembly 5 is installed on the processing box 1, and the sealing assembly 5 is composed of a second spring rod 501 and a first sealing plate 502. Two second spring rods 501 are fixed on the processing box 1, and the lower ends of the two second spring rods 501 are fixed on the first sealing plate 502. The first sealing plate 502 is a rectangular plate structure, and the first sealing plate 502 is the same size as the slag discharge port of the processing box 1.

[0032] When the two second spring rods 501 are fully extended, the first sealing plate 502 is located at the slag discharge port on the processing box 1. At this time, the slag discharge port is in a sealed state, and after the slag discharge port is sealed, gas leakage can be prevented.

[0033] Among them, a collecting assembly 6 is fixed on the processing box 1, and the collecting assembly 6 is composed of a collecting box 601, a second sealing plate 602 and a force block 603. A second sealing plate 602 is rotatable on the collecting box 601, and a coil spring is installed on the processing box 1 for the second sealing plate 602 to rotate clockwise and close. When the second sealing plate 602 is closed under the drive of the coil spring, the processing box 1 is in a sealed state.

[0034] Among them, two force blocks 603 are welded on the top end surface of the second sealing plate 602, and the two force blocks 603 are both right-angled trapezoidal block structures. The top ends of the two force blocks 603 are elastically in contact with the bottom end surface of the first sealing plate 502, and the elastic force of the coil spring is greater than the elastic force of the two second spring rods 501. During use, when the collection box 601 is removed, the first sealing plate 502 moves downward under the push of the elastic force of the second spring rods 501 to complete the sealing of the processing box 1.

[0035] Among them, when the cleaning brush 705 moves to the right, the cleaning brush 705 contacts the inclined surfaces of the two force blocks 603, and the second sealing plate 602 rotates under the squeezing of the cleaning brush 705. At this time, the cleaning brush 705 pushes the debris onto the second sealing plate 602, and the residue will slide down from the second sealing plate 602 into the collection box 601.

[0036] Among them, a mixing component 2 is installed on the processing box 1, and the mixing component 2 is composed of a rotating shaft 201, an impeller 202, a first motor 203, a mounting block 204, a first spring rod 205 and an auxiliary plate 206. A rotating shaft 201 rotates on the processing box 1, and an impeller 202 is fixed on the rotating shaft 201. A first motor 203 is fixed on the rear end face of the processing box 1, and the output shaft of the first motor 203 is fixed on the rotating shaft 201. During mixing, the first motor 203 is controlled to rotate, and the first motor 203 drives the impeller 202 to rotate, so as to achieve sufficient mixing of the sewage additives in the processing box 1 and improve the extraction effect.

[0037] Among them, a mounting block 204 is fixed to the left end face and the right end face of the inner wall of the processing box 1, and two first spring rods 205 are fixed to the top surface of each mounting block 204. The protruding ends of the four first spring rods 205 are fixed on the auxiliary plate 206.

[0038] Among them, the impeller 202 is in elastic contact with the auxiliary plate 206. When the impeller 202 rotates, the auxiliary plate 206 reciprocates up and down. While the impeller 202 rotates to achieve mixing, the sewage and additives can be mixed again through the up and down reciprocating movement of the auxiliary plate 206, thereby improving the mixing effect.

[0039] Among them, a blocking assembly 3 is installed on the processing box 1, and the blocking assembly 3 is composed of a blocking block 301, a first electric cylinder 302 and a blocking plate 303. A blocking block 301 is fixed to the left end face and the right end face of the inner wall of the processing box 1. The two blocking blocks 301 are located below the mounting block 204. The front end face and the rear end face of the two blocking blocks 301 are in contact with the front end face and the rear end face of the inner wall of the processing box 1 respectively; two first electric cylinders 302 are fixed to the left end face and the right end face of the inner wall of the processing box 1, and a blocking plate 303 is fixed to the protruding ends of the two first electric cylinders 302 on the left, and the two first electric cylinders 302 on the right are fixed to the protruding ends of the two first electric cylinders 302 on the left. A blocking plate 303 is also fixed to the protruding end of the electric cylinder 302. The top surfaces of the two blocking plates 303 are in contact with the bottom surfaces of the two blocking blocks 301 respectively. When the four first electric cylinders 302 are extended, the inner sides of the two blocking plates 303 are in contact. At this time, the interior of the processing box 1 is divided into two areas. When the valuable elements on the bottom cover 102 are taken out, the four first electric cylinders 302 are controlled to extend. At this time, the two blocking plates 303 complete the separation of the processing box 1. After separation, the bottom cover 102 is removed. At this time, the valuable elements on the bottom cover 102 can be taken out, and the sewage above the blocking plates 303 can be decomposed again. Example

[0040] On the basis of the first embodiment, the two blocking blocks 301 are both right-angled triangle block structures, which can prevent sediment from remaining on the two blocking blocks 301 during use.

[0041] The specific usage and function of this embodiment are as follows: Sewage and additives are added from the top cover 101. When cleaning debris, the second motor 702 is controlled to rotate, and the cleaning brush 705 is driven by the threaded rod 701 to move to the right. At this time, the residue on the filter screen can be pushed to the right. Under the squeezing of the cleaning brush 705, the second sealing plate 602 rotates. At this time, the cleaning brush 705 pushes the debris onto the second sealing plate 602, and the residue will slide down from the second sealing plate 602 to the collection box 601; when the cleaning brush 705 is worn, the two second electric cylinders 704 are controlled to extend, and the downward adjustment compensation of the cleaning brush 705 can be achieved; when mixing, the first motor 203 is controlled to rotate, and the first motor 203 drives the impeller 202 to rotate The movement can achieve full mixing of sewage additives in the treatment box 1, thereby improving the extraction effect; at the same time, while the impeller 202 rotates to achieve mixing, the sewage and additives can be mixed again through the up and down reciprocating movement of the auxiliary plate 206, thereby improving the mixing effect; after mixing, precipitation is required, and after precipitation is completed, the four first electric cylinders 302 are controlled to extend, at which time the two blocking plates 303 complete the separation of the treatment box 1, and after separation, the bottom cover 102 is removed, and the valuable elements on the bottom cover 102 can be taken out at this time; when collecting residues, after the collection box 601 is removed, the first sealing plate 502 moves downward under the elastic force of the second spring rod 501 to complete the sealing of the treatment box 1.

[0042] The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and the protection scope of the present disclosure shall be based on the protection scope of the claims.

Claims

1. A device for recovering valuable elements from acidic wastewater from abandoned mines, characterized in that: include: A treatment box (1); a top cover (101) is fixed on the top of the treatment box (1), a pipe for filling sewage and an additive adding funnel are welded on the top cover (101), a bottom cover (102) is fixed on the bottom of the treatment box (1), a filter screen seat (4) is fixed inside the treatment box (1), and an iron filter screen is fixed on the filter screen seat (4); a threaded rod (701) is rotatably mounted on the treatment box (1), a second motor (702) is fixed on the left end face of the treatment box (1), and the output shaft of the second motor (702) is fixed on the threaded rod (701); a rectangular block-shaped fixed block (703) is threadedly connected to the threaded rod (701), and the front and rear ends of the fixed block (703) are respectively connected to the treatment box ( 1), the front end face of the inner wall and the rear end face of the inner wall of the fixing block (703) are in contact, two second electric cylinders (704) are fixed to the bottom end face of the fixing block (703), the protruding ends of the two second electric cylinders (704) are fixed to the cleaning brush (705), and the cleaning brush (705) is in contact with the top end face of the filter screen seat (4); a sealing assembly (5) is installed on the processing box (1), the sealing assembly (5) is composed of a second spring rod (501) and a first sealing plate (502), the two second spring rods (501) are fixed to the processing box (1), the lower ends of the two second spring rods (501) are fixed to the first sealing plate (502), the first sealing plate (502) is a rectangular plate-shaped structure, and the first sealing plate (502) is the same size as the slag discharge port of the processing box (1).

2. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 1, characterized in that: When the two second spring rods (501) have been stretched, the first sealing plate (502) is located at the slag discharge port on the processing box (1), and the slag discharge port is in a sealed state.

3. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 2, characterized in that: A collecting assembly (6) is fixed on the processing box (1), and the collecting assembly (6) is composed of a collecting box (601), a second sealing plate (602) and a force-bearing block (603). A second sealing plate (602) is rotatably mounted on the collecting box (601), and a coil spring is mounted on the processing box (1) for rotating the second sealing plate (602) clockwise to close. When the second sealing plate (602) is closed under the drive of the coil spring, the processing box (1) is in a sealed state.

4. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 3, characterized in that: Two force blocks (603) are welded to the top end surface of the second sealing plate (602); both force blocks (603) are right-angled trapezoidal block structures; the top ends of the two force blocks (603) are in elastic contact with the bottom end surface of the first sealing plate (502); and the elastic force of the coil spring is greater than the elastic force of the two second spring rods (501).

5. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 4, characterized in that: When the cleaning brush (705) moves to the right, the cleaning brush (705) contacts the inclined surfaces of the two force-bearing blocks (603).

6. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 5, characterized in that: The processing box (1) is mounted with a mixing assembly (2), the mixing assembly (2) comprising a rotating shaft (201), an impeller (202), a first motor (203), a mounting block (204), a first spring rod (205) and an auxiliary plate (206); a rotating shaft (201) is rotatable on the processing box (1), the impeller (202) is fixed on the rotating shaft (201), a first motor (203) is fixed on the rear end surface of the processing box (1), and an output shaft of the first motor (203) is fixed on the rotating shaft (201).

7. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 6, characterized in that: A mounting block (204) is fixed to the left end surface and the right end surface of the inner wall of the processing box (1), two first spring rods (205) are fixed to the top surface of each mounting block (204), and the protruding ends of the four first spring rods (205) are fixed to the auxiliary plate (206).

8. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 7, characterized in that: The impeller (202) is in elastic contact with the auxiliary plate (206); when the impeller (202) rotates, the auxiliary plate (206) is in an up and down reciprocating motion state.

9. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 8, characterized in that: The processing box (1) is provided with a blocking assembly (3), the blocking assembly (3) being composed of a blocking block (301), a first electric cylinder (302) and a blocking plate (303); a blocking block (301) is fixed to each of the left end face and the right end face of the inner wall of the processing box (1); the two blocking blocks (301) are located below the mounting block (204); the front end face and the rear end face of the two blocking blocks (301) are in contact with the front end face and the rear end face of the inner wall of the processing box (1) respectively; the left end face of the inner wall of the processing box (1) Two first electric cylinders (302) are fixed to the right end surface of the inner wall, a blocking plate (303) is fixed to the extended ends of the two first electric cylinders (302) on the left, and a blocking plate (303) is also fixed to the extended ends of the two first electric cylinders (302) on the right, the top ends of the two blocking plates (303) are in contact with the bottom ends of the two blocking blocks (301) respectively, and when the four first electric cylinders (302) are extended, the inner sides of the two blocking plates (303) are in contact, and at this time, the interior of the processing box (1) is divided into two areas.

10. The device for recovering valuable elements from acidic wastewater from abandoned mines as claimed in claim 9, characterized in that: The two blocking blocks (301) are both right-angled triangle block structures.

Images