Low-temperature vacuum evaporation concentration device for concentrated waste liquid

Abstract

The utility model discloses a low-temperature vacuum evaporation and concentration device for concentrated waste liquid, which relates to the technical field of waste liquid concentration and comprises an evaporation shell, a discharge pipe is arranged on one side of the evaporation shell, an evaporation tank is arranged in the evaporation shell, the top end of the evaporation shell is connected with an input end of a vacuum pump, and the top end of the vacuum pump is connected with an output end of the vacuum pump. A cleaning mechanism is arranged over the evaporation tank body, the cleaning mechanism cleans the interior of the evaporation tank body in a reciprocating mode, then evaporation tank bodies of different sizes can be cleaned conveniently, a heating mechanism is arranged on the outer side of the evaporation tank body, and the heating mechanism meets the heating requirement of the evaporation tank body. In the using process, the electric cylinder drives the electric heating plate to vertically ascend and descend, the heating range and height of the electric heating plate are adjusted, the outer side of the electric heating plate is positioned through the two sets of positioning rings, and double-body outer threaded rods arranged on the two sides are used for positioning and locking the positioning rings on the two vertical sides.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid concentration, in particular to a low-temperature vacuum evaporation and concentration device for concentrated waste liquid. Background Art

[0002] Vacuum evaporation is an evaporation operation performed under vacuum. In the vacuum evaporation process, the secondary steam at the end of the process is usually condensed in a mixed condenser, and the evaporation temperature is set at 35-40°C. The compressor compresses the refrigerant to generate heat, and the water evaporates quickly. At the same time, the compression pump stops working, the pneumatic valve of the concentrate pipeline opens, the evaporation tank is pressurized, and the concentrate is pressed into the concentrate barrel.

[0003] After the existing low-temperature vacuum evaporation and concentration equipment is used, it is inconvenient to clean the inner wall, and the impurities attached inside are difficult to be washed away. It requires manual work to repeatedly clean the inner wall of the tank. The existing heating mechanism is a fixed height, but the liquid will change according to the production volume. The fixed height heating mechanism will affect the heating efficiency of waste liquid at different depths and affect the quality of subsequent products. Summary of the invention

[0004] The utility model aims to provide a low-temperature vacuum evaporation and concentration device for concentrated waste liquid to solve the above-mentioned defects caused by the prior art.

[0005] A low-temperature vacuum evaporation and concentration device for concentrated waste liquid comprises an evaporation shell, a discharge pipe is arranged on one side of the evaporation shell, an evaporation tank body is arranged inside the evaporation shell, the top of the evaporation shell is connected to the input end of a vacuum pump, a cleaning mechanism is arranged directly above the evaporation tank body, the cleaning mechanism reciprocates and cleans the inside of the evaporation tank body, thereby facilitating the cleaning of evaporation tank bodies of different sizes, a heating mechanism is arranged on the outside of the evaporation tank body, and the heating mechanism adjusts the heating position of the heating mechanism according to the heating demand of the evaporation tank body.

[0006] Preferably, the cleaning mechanism includes a cleaning rod, a U-shaped rod, a positioning plate and a positioning hole, the cleaning rod is arranged through the middle of the U-shaped rod, positioning holes are opened at equal intervals on the outside of the cleaning rod, the bottom end of the cleaning rod is connected to the positioning plate, the cleaning rod is arranged on the pipeline directly above the evaporation tank body, and a feed pipe is connected through one side of the evaporation tank body.

[0007] Preferably, the cleaning rod is connected to the evaporation tank body via a positioning plate connected to the bottom end.

[0008] Preferably, the heating mechanism includes a bidirectional external rod, a positioning ring, an electric heating plate, and an electric cylinder. The upper and lower ends of the bidirectional external rod are connected to the positioning ring, the outer side of the positioning ring is connected to the electric heating plate, the bottom end of the positioning ring is connected to the output end of the electric cylinder, the electric cylinder is installed on the outer side of the evaporation tank body, and the bidirectional external rod is connected to the outer side of the positioning ring through a locking nut.

[0009] Preferably, a positioning ring connected to the outer side of the electric heating plate is connected to the outer side of the evaporation tank body.

[0010] Preferably, one side of the evaporation shell is hingedly connected with an equipment door.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. During use, the electric cylinder drives the electric heating plate to move vertically up and down, adjusts the heating range and height of the electric heating plate, and positions the outer side of the electric heating plate through two groups of positioning rings. The double-rest external tooth rods on both sides are used to position and lock the positioning rings on both sides vertically, and then the electric heating plates of different sizes can be positioned and adjusted according to the needs of liquid processing.

[0013] 2. After completing the heating and concentration, the operator can lift the cleaning rod vertically on the outside of the U-shaped rod to control the cleaning depth and range of the positioning plate. The cleaning rod is driven by the electric cylinder to lift and lower vertically, and the cleaning brush is set on the outside of the positioning plate for positioning. Repeated cleaning can improve the efficiency of cleaning the dirt on the inner wall of the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the structure inside the evaporation shell in the utility model.

[0016] Figure 3 It is a schematic structural diagram of the positioning ring itself in the utility model.

[0017] Figure 4 It is a schematic diagram of the front section structure of the evaporation tank body in the utility model.

[0018] Figure 5 This is a schematic diagram of the top view of the evaporation tank body in the utility model.

[0019] in:

[0020] 1. Evaporation shell; 2. Discharge pipe; 3. Equipment box door; 4. Vacuum pump; 5. Evaporation tank; 6. Cleaning mechanism; 7. Cleaning rod; 8. Feed pipe; 9. U-shaped rod; 10. Heating mechanism; 11. Bidirectional external tooth rod; 12. Positioning ring; 13. Electric heating plate; 14. Electric cylinder; 15. Positioning plate; 16. Positioning hole. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 5 As shown, a low-temperature vacuum evaporation and concentration device for concentrated waste liquid comprises an evaporation shell 1, a discharge pipe 2 is arranged on one side of the evaporation shell 1, an evaporation tank body 5 is arranged inside the evaporation shell 1, the top of the evaporation shell 1 is connected to the input end of a vacuum pump 4, a cleaning mechanism 6 is arranged directly above the evaporation tank body 5, the cleaning mechanism 6 reciprocates to clean the inside of the evaporation tank body 5, and thus facilitates the cleaning of evaporation tank bodies 5 of different sizes, and a heating mechanism 10 is arranged on the outside of the evaporation tank body 5, and the heating mechanism 10 adjusts the heating position of the heating mechanism 10 according to the heating demand of the evaporation tank body 5.

[0023] In this embodiment, the cleaning mechanism 6 includes a cleaning rod 7, a U-shaped rod 9, a positioning plate 15 and a positioning hole 16. The cleaning rod 7 is arranged through the middle of the U-shaped rod 9, and the outer side of the cleaning rod 7 is provided with positioning holes 16 at equal intervals. The bottom end of the cleaning rod 7 is connected to the positioning plate 15. The cleaning rod 7 is arranged on the pipeline directly above the evaporation tank body 5. A feeding pipe 8 is connected to one side of the evaporation tank body 5, and waste liquid is injected through the feeding pipe 8. The descending depth of the cleaning rod 7 is controlled according to the size of the evaporation tank body 5.

[0024] In this embodiment, the cleaning rod 7 is connected to the evaporation tank body 5 via a positioning plate 15 connected to the bottom end, and the cleaning parts are driven to vertically rise and fall by the positioning plate 15 to automatically clean the evaporation tank body 5 .

[0025] In this embodiment, the heating mechanism 10 includes a bidirectional external tooth rod 11, a positioning ring 12, an electric heating plate 13, and an electric cylinder 14. The upper and lower ends of the bidirectional external tooth rod 11 are connected to the positioning ring 12, the outer side of the positioning ring 12 is connected to the electric heating plate 13, the bottom end of the positioning ring 12 is connected to the output end of the electric cylinder 14, the electric cylinder 14 is installed on the outer side of the evaporation tank body 5, and the bidirectional external tooth rod 11 is connected to the outer side of the positioning ring 12 through a locking nut.

[0026] In this embodiment, the positioning ring 12 connected to the outer side of the electric heating plate 13 is connected to the outer side of the evaporation tank body 5, and the outer side of the electric heating plate 13 is positioned by the positioning ring 12, thereby improving the flexibility of disassembly and installation of electric heating plates 13 of different sizes.

[0027] In this embodiment, a device door 3 is hingedly connected to one side of the evaporation shell 1, and the device door 3 shields one side of the evaporation tank 5, so as to facilitate heating and condensing of materials.

[0028] The low-temperature vacuum evaporation and concentration device for concentrated waste liquid includes the following work contents in practical application:

[0029] Step 1: The operator opens the equipment box door 3, collects the waste water through the evaporation tank 5 arranged inside the evaporation shell 1, discharges the liquid into the evaporation tank 5 through the feed pipe 8 arranged on one side of the evaporation tank 5, and sucks air into the evaporation tank 5 through the vacuum pump 4 arranged on the top, so that the evaporation tank 5 forms a vacuum state;

[0030] Step 2: The evaporation temperature is set to 35-40°C. During use, the operator pulls the positioning rings 12 on both sides, and uses the bidirectional external tooth rods 11 of different lengths to vertically position the positioning rings 12. According to the size of the electric heating plate 13, the spacing between the two groups of positioning rings 12 is adjusted, and the bidirectional external tooth rods 11 and the outer sides of the positioning rings 12 are locked by nuts, and the bidirectional external tooth rods 11 and the electric heating plate 13 are used for positioning and locking.

[0031] Step 3: The operator turns on the electric cylinder 14 according to the height of the waste liquid, and uses the electric cylinder 14 to drive the electric heating plate 13 and the positioning ring 12 to vertically rise and fall, so that the positioning ring 12 is vertically raised and lowered outside the evaporation tank 5, and the height of the electric heating plate 13 is adjusted. The steam is discharged through the top of the evaporation tank 5, and the steam rises and meets the cold liquid to liquefy and enter the water storage tank, completing the cooling and filtering of the steam. After one evaporation cycle is completed, the vacuum pump 4 stops working, the concentrated liquid pipeline discharge pipe 2 is opened, and the concentrated liquid is pressed into the concentration barrel;

[0032] Step 4: When it is necessary to clean the inside of the evaporation tank body 5, the operator can pull the cleaning rod 7 to make the cleaning rod 7 vertically lift and lower on the U-shaped rod 9, position the positioning plate 15 and the cleaning cotton or brush arranged below the cleaning rod 7, drive the positioning ring 12 and the U-shaped rod 9 to lift and lower vertically through the electric cylinder 14, and use the cleaning rod 7 to drive the positioning plate 15 to lift and lower vertically, use the positioning plate 15 and the cleaning brush to move repeatedly, scrub and clean the residual dirt inside the evaporation tank body 5, and discharge the sewage through the discharge pipe 2.

[0033] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. Low-temperature vacuum evaporation and concentration device for concentrated waste liquid, characterized by: The invention comprises an evaporation shell (1), a discharge pipe (2) is arranged on one side of the evaporation shell (1), an evaporation tank body (5) is arranged inside the evaporation shell (1), the top end of the evaporation shell (1) is connected to the input end of a vacuum pump (4), a cleaning mechanism (6) is arranged directly above the evaporation tank body (5), the cleaning mechanism (6) performs reciprocating cleaning on the inside of the evaporation tank body (5), thereby facilitating the cleaning of evaporation tank bodies (5) of different sizes, a heating mechanism (10) is arranged on the outside of the evaporation tank body (5), and the heating mechanism (10) adjusts the heating position of the heating mechanism (10) according to the heating demand of the evaporation tank body (5); The heating mechanism (10) comprises a bidirectional external tooth rod (11), a positioning ring (12), an electric heating plate (13), and an electric cylinder (14); the upper and lower ends of the bidirectional external tooth rod (11) are connected to the positioning ring (12); the outer side of the positioning ring (12) is connected to the electric heating plate (13); the bottom end of the positioning ring (12) is connected to the output end of the electric cylinder (14); the electric cylinder (14) is installed on the outer side of the evaporation tank body (5); and the bidirectional external tooth rod (11) is connected to the outer side of the positioning ring (12) through a locking nut.

2. The low-temperature vacuum evaporation and concentration device for concentrated waste liquid according to claim 1, characterized in that: The cleaning mechanism (6) comprises a cleaning rod (7), a U-shaped rod (9), a positioning plate (15) and a positioning hole (16); the cleaning rod (7) is arranged through the middle of the U-shaped rod (9); the positioning holes (16) are arranged at equal intervals on the outer side of the cleaning rod (7); the bottom end of the cleaning rod (7) is connected to the positioning plate (15); the cleaning rod (7) is arranged on the pipeline directly above the evaporation tank body (5); and a feed pipe (8) is connected through one side of the evaporation tank body (5).

3. The low-temperature vacuum evaporation and concentration device for concentrated waste liquid according to claim 2, characterized in that: The cleaning rod (7) is connected to the evaporation tank body (5) via a positioning plate (15) connected to the bottom end.

4. The low-temperature vacuum evaporation and concentration device for concentrated waste liquid according to claim 1, characterized in that: The positioning ring (12) connected to the outer side of the electric heating plate (13) is connected to the outer side of the evaporation tank body (5).

5. The low-temperature vacuum evaporation and concentration device for concentrated waste liquid according to claim 1, characterized in that: One side of the evaporation shell (1) is hingedly connected to an equipment box door (3).

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