Counter-flow type multi-effect evaporation and concentration crystallizer cleaning device

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a counter-flow type multi-effect evaporation and concentration crystallizer cleaning device. Every two adjacent cleaning brushes are connected through a connecting mechanism and then are arranged on one side of the supporting rod in a suspended mode. The cleaning motor is fixed to the top wall of the cleaning brush, and the outer side of the cleaning motor is sleeved with a mounting plate. The telescopic mechanism is arranged in the top end of the supporting rod and is connected with the mounting plate; the inserting plate is inserted into the supporting rod; the lower end of the internal thread pipe penetrates through the lower side wall of the inserting plate and then is screwed in the fixing plate through a bearing, and the end, located in the fixing plate, of the internal thread pipe is connected through a synchronous wheel transmission assembly; the driving motor is embedded in the fixing plate, and an output shaft of the driving motor is fixedly connected with the bottom end of one inner threaded pipe; the screw rods are screwed into the inner threaded pipes through threads, and the upper ends of the screw rods penetrate through the upper ends of the inner threaded pipes and then are fixed to the inner top walls of the supporting rods; the evaporator can be conveniently cleaned, and the problems of dirt blockage and scaling in the evaporator are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a countercurrent multi-effect evaporation concentration crystallizer cleaning device. Background Art

[0002] The low-temperature multi-effect evaporation concentration crystallization system is composed of multiple evaporators connected in series. The thermal energy of the steam is circulated and reused many times to reduce heat energy consumption and reduce costs. The heated brine is evaporated in multiple evaporators connected in series, and the secondary steam generated by the front-effect evaporation is used as the heat source of the after-effect evaporator. The brine that reaches the degree of crystallization after multi-effect evaporation enters the crystallizer to produce crystals, and solid-liquid separation is achieved through the separator, and fresh water is recycled. With the continuous promotion and application of multi-effect evaporation crystallization technology, some problems are gradually exposed in the process of concentration and crystallization application. According to the operation of the currently built multi-effect evaporation crystallization device, the evaporator fouling and scaling problems are prominent. The main reason for the scaling of the evaporator is that the solid content of the liquid in the multi-effect evaporation increases with each effect, the flow rate decreases, the scaling rate increases with each effect, the production intensity of the evaporator decreases, the unit steam consumption is large, and in severe cases it will affect normal production. Utility Model Content

[0003] The purpose of the utility model is to provide a countercurrent multi-effect evaporation concentration crystallizer cleaning device with reasonable design and convenient use in view of the defects and shortcomings of the prior art, which can effectively solve the defects of the above-mentioned prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: it comprises a fixing plate and a support rod, and the upper side of the fixing plate is provided with a support rod; it also comprises:

[0005] A cleaning brush, wherein there are several cleaning brushes, and two adjacent cleaning brushes are connected by a connecting mechanism and suspended on one side of the support rod;

[0006] A cleaning motor, wherein the cleaning motor is fixed on the top wall of the cleaning brush, and a mounting plate is sleeved on the outer side of the cleaning motor, and the mounting plate is suspended above one side of the support rod;

[0007] A telescopic mechanism, wherein the telescopic mechanism is arranged in the top end of the support rod and connected to the mounting plate;

[0008] The plug plate is inserted into the support rod, and the lower side of the plug plate passes through the lower end of the support rod and is fixed on the upper surface of the fixed plate;

[0009] Internally threaded tubes, there are two internally threaded tubes, which are symmetrical in front and back and embedded in the plug plate through bearings. After the lower end of the internally threaded tube passes through the lower side wall of the plug plate, it is screwed into the fixed plate through a bearing. One end of the internally threaded tube located in the fixed plate is connected through a synchronous wheel transmission assembly;

[0010] A driving motor, wherein the driving motor is embedded in the fixing plate, and an output shaft of the driving motor is fixedly connected to the bottom end of one of the internally threaded tubes;

[0011] Screws, there are two screws, and they are respectively screwed into the internal threaded tube through threads, and the upper ends of the screws pass through the upper ends of the internal threaded tubes and are fixed on the inner top wall of the support rod;

[0012] Through the above technical scheme, according to the depth of the evaporator, a suitable number of cleaning brushes are selected and connected through a connecting mechanism, and the driving motor is started. The driving motor drives the internal threaded tube connected to it to rotate, and the internal threaded tube drives another internal threaded tube to rotate through a synchronous wheel transmission assembly. The two internal threaded tubes drive the screw rods inside each other to move upward, and the screw rods drive the support rods to move upward until the cleaning brush is located on the upper side of the evaporator, and then the mounting plate is driven to move through the telescopic mechanism, and the mounting plate drives the cleaning brush to move to the top of the evaporator to be cleaned, and then the driving motor is started in reverse so that the cleaning brush is inserted into the evaporator, and then the cleaning motor is started, and the cleaning motor drives the cleaning brush to rotate, so that the inner wall of the evaporator is cleaned by the cleaning brush.

[0013] As a further improvement of the present invention, the connecting mechanism comprises:

[0014] A connecting block, the connecting block is fixed on the top wall of the cleaning brush, and the connecting block is inserted into the square groove at the lower end of the upper cleaning brush adjacent thereto;

[0015] The limit blocks are two in number and are symmetrically and movably inserted into the connecting block. The end of the limit block away from the center of the connecting block passes through the connecting block and is inserted into the limit groove on the inner wall of the square groove. The convex ring at the inner end of the limit block is slidably arranged in the annular groove on the inner wall of the connecting block.

[0016] There are two resistance springs, which are respectively embedded in the inner ends of the limit blocks, and the other ends of the resistance springs pass through the limit blocks and are fixed on the inner wall of the connecting block;

[0017] Push rods, there are two push rods, and they are inserted into the limit grooves on both sides symmetrically, the inner ends of the push rods are matched and abutted against the limit blocks, the convex rings on the inner ends of the push rods are slidably set in the cleaning brush, and the outer ends of the push rods are exposed outside the cleaning brush after passing through the cleaning brush;

[0018] A tension spring, wherein there are two tension springs, each of which is sleeved on one end of the push rod located inside the cleaning brush, and the two ends of the tension spring are respectively fixed on the inner wall of the cleaning brush and the convex ring of the push rod;

[0019] Through the above technical solution, during installation, the limit block is pushed into the connecting block so that the interference spring is compressed, and then the connecting block is inserted into the upper cleaning brush until the limit block and the pushing rod are in the same plane. At this time, the elastic force of the interference spring pushes the limit block outward and inserts it into the limit groove, and interferes with the pushing rod, so that the connecting block can be limited, so that the two cleaning brushes are connected. When disassembly is required, the pushing rods on both sides are pushed toward the center of the cleaning brush, and the inner end of the pushing rod pushes the limit block toward the inside of the connecting block, thereby facilitating the removal of the connecting block from the cleaning brush.

[0020] As a further improvement of the present invention, movable wheels are fixed to the four corners of the lower surface of the fixed plate, which can facilitate the movement of the fixed plate.

[0021] As a further improvement of the utility model, the telescopic mechanism comprises:

[0022] Telescopic connecting rods, there are two telescopic connecting rods, which are symmetrically arranged between the mounting plate and the support rod, and the two ends of one side of the telescopic connecting rod are respectively fixed to the mounting plate and the support rod through hinge seats, and the two ends of the other side of the telescopic connecting rod are respectively screwed with moving blocks through hinge seats, and the moving blocks are respectively slidably arranged in the sliding grooves on the mounting plate and the side walls of the support rod, and the moving blocks on the two telescopic connecting rods are diagonally arranged;

[0023] Pushing screw rods, there are two pushing screw rods, which are screwed together at the upper and lower sides of the support rod through bearings, and the two moving blocks in the support rod are screwed together on the corresponding pushing screw rods through threads;

[0024] Linkage gears, there are two linkage gears, which are sleeved and fixed on two push screw rods in a one-to-one correspondence, and the two linkage gears are meshed with each other;

[0025] A telescopic motor, wherein the telescopic motor is embedded in the support rod and is fixedly connected to one end of one of the push screws;

[0026] Through the above technical solution, the telescopic motor is started, and the telescopic motor drives the connected pushing screw to rotate, and the pushing screw drives another pushing screw to rotate through the meshing linkage gears, and the two pushing screws respectively drive the moving blocks thereon to move, and the moving blocks drive one end of the corresponding telescopic connecting rod to move, so that the telescopic connecting rod achieves the telescopic effect, and the other end of the telescopic connecting rod drives the mounting plate to move, so that the cleaning brush moves to a suitable position.

[0027] As a further improvement of the utility model, a sealing plate is abutted on the bottom wall of the lowermost cleaning brush, the sealing plate is connected to the cleaning brush through a connecting mechanism, and the sealing plate is fixedly connected to a connecting block in the connecting mechanism;

[0028] By means of the above technical solution, the square groove on the bottom wall of the cleaning brush at the lowermost side can be easily sealed.

[0029] Compared with the prior art, the beneficial effects of the utility model are as follows: the countercurrent multi-effect evaporation concentration crystallizer cleaning device described in the utility model can facilitate the cleaning of the evaporator, reduce the problems of fouling and scaling in the evaporator, thereby improving the utility model with reasonable settings and low manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the utility model.

[0031] Figure 2 It is an exploded view of the utility model.

[0032] Figure 3 It is a structural schematic diagram of the cleaning brush and the connecting mechanism in the utility model.

[0033] Figure 4 It is a structural schematic diagram of the telescopic mechanism in the utility model.

[0034] Description of reference numerals:

[0035] Fixed plate 1, support rod 2, cleaning brush 3, square groove 3-1, connecting mechanism 4, connecting block 4-1, limit block 4-2, resistance spring 4-3, push rod 4-4, tension spring 4-5, cleaning motor 5, mounting plate 6, telescopic mechanism 7, telescopic connecting rod 7-1, moving block 7-2, pushing screw rod 7-3, linkage gear 7-4, telescopic motor 7-5, plug plate 8, internal threaded tube 9, drive motor 10, screw rod 11, moving wheel 12, sealing plate 13. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] like Figure 1-Figure 4 As shown, this embodiment includes a fixed plate 1 and a support rod 2, wherein the support rod 2 is arranged on the upper side of the fixed plate 1; the four corners of the lower surface of the fixed plate 1 are fixed with moving wheels 12 by bolts; the fixed plate 1 can be driven to move; it also includes:

[0039] A cleaning brush 3, wherein there are several cleaning brushes 3, and two adjacent cleaning brushes 3 are connected by a connecting mechanism 4 and are suspended on the left side of the support rod 2;

[0040] A cleaning motor 5, wherein the cleaning motor 5 is fixed to the top wall of the cleaning brush 3 by bolts, and a mounting plate 6 is sleeved on the outer side of the cleaning motor 5, and the mounting plate 6 is suspended above the left side of the support rod 2;

[0041] The telescopic mechanism 7 is arranged in the top end of the support rod 2, and the telescopic mechanism 7 is connected to the mounting plate 6;

[0042] The plug plate 8 is inserted into the support rod 2, and the lower side of the plug plate 8 passes through the lower end of the support rod 2 and is welded and fixed on the upper surface of the fixed plate 1;

[0043] Internally threaded tubes 9, there are two internally threaded tubes 9, which are symmetrical in front and back and embedded in the plug plate 8 through bearings. After the lower end of the internally threaded tube 9 passes through the lower side wall of the plug plate 8, it is screwed into the fixed plate 1 through a bearing, and one end of the internally threaded tube 9 located in the fixed plate 1 is connected through a synchronous wheel transmission assembly;

[0044] A driving motor 10, wherein the driving motor 10 is embedded in the fixing plate 1, and the output shaft of the driving motor 10 is fixedly connected to the bottom end of the internally threaded tube 9 on the front side;

[0045] The screw rods 11 are two in number and are respectively screwed into the internal threaded tube 9 through threads. The upper ends of the screw rods 11 pass through the upper ends of the internal threaded tube 9 and are then welded and fixed to the inner top wall of the support rod 2 .

[0046] Embodiment 2:

[0047] See also Figure 2 , Figure 3 As shown, based on Example 1, the connecting mechanism 4 includes:

[0048] A connecting block 4-1, wherein the connecting block 4-1 is welded and fixed on the top wall of the cleaning brush 3, and the connecting block 4-1 is inserted into the square groove 3-1 at the lower end of the upper cleaning brush 3 adjacent thereto; a sealing plate 13 is abutted on the bottom wall of the cleaning brush 3 at the lowermost side, and the sealing plate 13 is connected to the cleaning brush 3 through the connecting mechanism 4, and the sealing plate 13 is fixedly connected to the connecting block 4-1 in the connecting mechanism 4, so as to facilitate sealing of the square groove 3-1 on the bottom wall of the cleaning brush 3 at the lowermost side;

[0049] Limiting blocks 4-2, there are two limiting blocks 4-2, and the limiting blocks 4-2 are symmetrically inserted into the connecting block 4-1, and one end of the limiting block 4-2 away from the center of the connecting block 4-1 passes through the connecting block 4-1 and is inserted into the limiting groove on the inner wall of the square groove 3-1, and the convex ring at the inner end of the limiting block 4-2 is slidably set in the annular groove on the inner wall of the connecting block 4-1;

[0050] The resisting spring 4-3 is two and is respectively embedded in the inner end of the limit block 4-2. The other end of the resisting spring 4-3 passes through the limit block 4-2 and is welded and fixed to the inner wall of the connecting block 4-1.

[0051] Push rods 4-4, there are two push rods 4-4, and they are symmetrically inserted into the limit grooves on both sides, the inner ends of the push rods 4-4 are matched and abutted against the limit blocks 4-2, the convex ring on the inner ends of the push rods 4-4 is slidably set in the cleaning brush 3, and the outer ends of the push rods 4-4 pass through the cleaning brush 3 and are exposed on the outside of the cleaning brush 3;

[0052] The tension spring 4-5 is two in number and is respectively sleeved on one end of the push rod 4-4 located inside the cleaning brush 3, and the two ends of the tension spring 4-5 are respectively welded and fixed on the inner wall of the cleaning brush 3 and the convex ring of the push rod 4-4.

[0053] Embodiment 3:

[0054] See also Figure 1-Figure 2 , Figure 4 As shown, based on Example 1, the telescopic mechanism 7 includes:

[0055] Telescopic connecting rod 7-1, there are two telescopic connecting rods 7-1, and they are symmetrically arranged between the mounting plate 6 and the support rod 2. The two ends of one side of the telescopic connecting rod 7-1 are respectively fixed to the mounting plate 6 and the support rod 2 through hinge seats, and the two ends of the other side of the telescopic connecting rod 7-1 are respectively screwed with moving blocks 7-2 through hinge seats. The moving blocks 7-2 are respectively slidably arranged in the sliding grooves on the side walls of the mounting plate 6 and the support rod 2, and the moving blocks 7-2 on the two telescopic connecting rods 7-1 are diagonally arranged;

[0056] Pushing screw rods 7-3, there are two pushing screw rods 7-3, and they are screwed together at the upper and lower sides of the support rod 2 through bearings, and the two moving blocks 7-2 in the support rod 2 are screwed together on the corresponding pushing screw rods 7-3 through threads respectively;

[0057] Linkage gear 7-4, there are two linkage gears 7-4, and they are sleeved and welded on the two push screw rods 7-3 in a one-to-one correspondence, and the two linkage gears 7-4 are meshed with each other;

[0058] The telescopic motor 7-5 is embedded in the support rod 2, and the telescopic motor 7-5 is fixedly connected to the rear end of the upper pushing screw rod 7-3.

[0059] When using the utility model, according to the depth of the evaporator, select a suitable number of cleaning brushes 3, push the limit block 4-2 into the connecting block 4-1, so that the interference spring 4-3 is compressed, and then insert the connecting block 4-1 into the upper cleaning brush 3 until the limit block 4-2 and the pushing rod 4-4 are in the same plane. At this time, the elastic force of the interference spring 4-3 pushes the limit block 4-2 outward and inserts it into the limit groove, and conflicts with the pushing rod 4-4, so that the connecting block 4-1 can be limited, so that the two cleaning brushes 3 are connected. When disassembly is required, the pushing rods 4-4 on both sides are pushed toward the center of the cleaning brush 3, and the inner end of the pushing rod 4-4 pushes the limit block 4-2 toward the inside of the connecting block 4-1, so as to facilitate the connection block 4-1 to be removed from the cleaning brush 3, start the driving motor 10, and the driving motor 10 drives the internal threaded tube 9 connected thereto to rotate, and the internal threaded tube 9 drives another internal threaded wheel through the synchronous wheel transmission assembly The tube 9 rotates, and the two internally threaded tubes 9 drive the screw rods 11 inside each of them to move upward, and the screw rod 11 drives the support rod 2 to move upward until the cleaning brush 3 is located on the upper side of the evaporator, and the telescopic motor 7-5 is started. The telescopic motor 7-5 drives the pushing screw rod 7-3 connected thereto to rotate, and the pushing screw rod 7-3 drives another pushing screw rod 7-3 to rotate through the meshing linkage gear 7-4. The two pushing screw rods 7-3 respectively drive the moving blocks 7-2 thereon to move, and the moving blocks 7-2 drive one end of the corresponding telescopic connecting rod 7-1 to move, so that the telescopic connecting rod 7-1 achieves a telescopic effect, and the other end of the telescopic connecting rod 7-1 drives the mounting plate 6 to move, so that the cleaning brush 3 moves to the top of the evaporator to be cleaned, and then the driving motor 10 is started in the reverse direction to insert the cleaning brush 3 into the evaporator, and then the cleaning motor 5 is started. The cleaning motor 5 drives the cleaning brush 3 to rotate, so that the inner wall of the evaporator is cleaned by the cleaning brush 3.

[0060] Compared with the prior art, the beneficial effects of this specific implementation are as follows:

[0061] 1. The evaporator can be cleaned by a cleaning brush 3, and the cleaning brush 3 can be connected through a connecting mechanism 4. The length of the cleaning brush 3 can be adjusted according to the specifications of the evaporator, so as to facilitate the cleaning of the evaporator and reduce the problems of fouling and scaling in the evaporator;

[0062] 2. The mounting plate 6 on the upper side of the cleaning brush 3 is connected to the support rod 2 through a telescopic mechanism 7, so that the cleaning brush 3 can be easily moved to a suitable position.

[0063] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A countercurrent multiple-effect evaporation concentration crystallizer cleaning device, characterized in that: It comprises a fixing plate (1) and a supporting rod (2), wherein the upper side of the fixing plate (1) is provided with the supporting rod (2); it also comprises: A cleaning brush (3), wherein the cleaning brushes (3) are in plurality, and two adjacent cleaning brushes (3) are connected via a connecting mechanism (4) and are suspended on one side of the support rod (2); A cleaning motor (5), wherein the cleaning motor (5) is fixed on the top wall of the cleaning brush (3), a mounting plate (6) is sleeved on the outer side of the cleaning motor (5), and the mounting plate (6) is suspended above one side of the support rod (2); A telescopic mechanism (7), wherein the telescopic mechanism (7) is arranged in the top end of the support rod (2), and the telescopic mechanism (7) is connected to the mounting plate (6); An insert plate (8), wherein the insert plate (8) is inserted into the support rod (2), and the lower side of the insert plate (8) passes through the lower end of the support rod (2) and is fixed on the upper surface of the fixed plate (1); The inner threaded tube (9) is two in number and is symmetrical in front and back and is embedded in the plug plate (8) through a bearing. After the lower end of the inner threaded tube (9) passes through the lower side wall of the plug plate (8), it is screwed into the fixed plate (1) through a bearing. One end of the inner threaded tube (9) located in the fixed plate (1) is connected through a synchronous wheel transmission assembly. A driving motor (10), wherein the driving motor (10) is embedded in the fixing plate (1), and an output shaft of the driving motor (10) is fixedly connected to the bottom end of one of the internally threaded tubes (9); The screw rods (11) are two in number and are respectively screwed into the internal threaded tube (9) through threads. The upper ends of the screw rods (11) pass through the upper ends of the internal threaded tube (9) and are fixed on the inner top wall of the support rod (2).

2. A countercurrent multiple-effect evaporation concentration crystallizer cleaning device according to claim 1, characterized in that: The connecting mechanism (4) comprises: A connecting block (4-1), wherein the connecting block (4-1) is fixed on the top wall of the cleaning brush (3), and the connecting block (4-1) is inserted into a square groove (3-1) at the lower end of the upper cleaning brush (3) adjacent thereto; The limit blocks (4-2) are two in number and are symmetrically and movably inserted into the connecting block (4-1). After one end of the limit block (4-2) away from the center of the connecting block (4-1) passes through the connecting block (4-1), it is inserted into the limit groove on the inner wall of the square groove (3-1). The convex ring at the inner end of the limit block (4-2) is slidably arranged in the annular groove on the inner wall of the connecting block (4-1). A resistance spring (4-3), wherein the resistance springs (4-3) are two and are respectively embedded in the inner ends of the limit blocks (4-2); the other ends of the resistance springs (4-3) pass through the limit blocks (4-2) and are fixed on the inner wall of the connecting block (4-1); Push rods (4-4), the push rods (4-4) are two in number and are symmetrically inserted into the limit grooves on both sides, the inner ends of the push rods (4-4) are matched and abutted against the limit blocks (4-2), the convex ring on the inner ends of the push rods (4-4) is slidably arranged in the cleaning brush (3), and the outer ends of the push rods (4-4) are exposed on the outside of the cleaning brush (3) after passing through the cleaning brush (3); There are two tension springs (4-5), which are respectively sleeved on one end of the push rod (4-4) located inside the cleaning brush (3), and the two ends of the tension spring (4-5) are respectively fixed on the inner wall of the cleaning brush (3) and the convex ring of the push rod (4-4).

3. A countercurrent multiple-effect evaporation concentration crystallizer cleaning device according to claim 1, characterized in that: Moving wheels (12) are fixed to the four corners of the lower surface of the fixed plate (1).

4. A countercurrent multiple-effect evaporation concentration crystallizer cleaning device according to claim 1, characterized in that: The telescopic mechanism (7) comprises: A telescopic connecting rod (7-1), wherein the telescopic connecting rod (7-1) is two in number and is symmetrically arranged between the mounting plate (6) and the support rod (2) in the upper and lower directions, the two ends of one side of the telescopic connecting rod (7-1) are respectively fixed to the mounting plate (6) and the support rod (2) through a hinge seat, and the two ends of the other side of the telescopic connecting rod (7-1) are respectively screwed with a moving block (7-2) through a hinge seat, and the moving block (7-2) is respectively slidably arranged in a slide groove on the side wall of the mounting plate (6) and the support rod (2), and the moving blocks (7-2) on the two telescopic connecting rods (7-1) are diagonally arranged; Pushing screw rods (7-3), there are two pushing screw rods (7-3), which are screwed together at the upper and lower sides of the support rod (2) through bearings, and the two moving blocks (7-2) in the support rod (2) are screwed together on the corresponding pushing screw rods (7-3) through threads respectively; Linkage gears (7-4), there are two linkage gears (7-4), which are sleeved and fixed on the two driving screw rods (7-3) in a one-to-one correspondence, and the two linkage gears (7-4) are meshed with each other; A telescopic motor (7-5), wherein the telescopic motor (7-5) is embedded in the support rod (2), and the telescopic motor (7-5) is fixedly connected to one end of one of the push screw rods (7-3).

5. A countercurrent multiple-effect evaporation concentration crystallizer cleaning device according to claim 2, characterized in that: A sealing plate (13) abuts against the bottom wall of the lowest cleaning brush (3); the sealing plate (13) is connected to the cleaning brush (3) via a connecting mechanism (4); and the sealing plate (13) is fixedly connected to a connecting block (4-1) in the connecting mechanism (4).

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