Sulphur-containing wastewater evaporation module

Abstract

The utility model belongs to wastewater evaporator technical field, concretely relates to a sulfur-containing wastewater evaporation module, including wastewater tank and multiple effect evaporator, multiple effect evaporator includes one effect evaporator, two effect evaporator and three effect evaporator of order level series connection, the gas outlet of upper level evaporator is connected with the gas inlet of lower level evaporator through steam pipe, the liquid inlet of upper level evaporator is connected with the liquid outlet of lower level evaporator through liquid conveying pipeline, and the wastewater tank of cavity structure is provided with feed pipe and discharge pipe, and the liquid inlet of one effect evaporator is connected with the discharge pipe of wastewater tank through liquid conveying pipeline;Side weir structure is arranged in the cavity of wastewater tank, and the discharge pipe has height difference with the feed pipe and is located above the top slope height of side weir structure, and the utility model has the beneficial effects that: the side weir structure is additionally arranged in the wastewater tank, the height difference between the discharge pipe and the feed pipe is increased, and the sedimentation of impurities in wastewater is realized by using the principle of sedimentation tank.

Description

Technical Field

[0001] This utility model relates to the field of wastewater evaporator technology, specifically to a sulfur-containing wastewater evaporation module. Background Technology

[0002] A triple-effect evaporator is a highly efficient solution concentration device consisting of three evaporators connected in series. Powered by low-temperature heating steam at approximately 90°C, it concentrates and crystallizes inorganic salts in wastewater flowing from a wastewater tank through a sequential evaporation process. However, in actual operation, the high impurity content of the wastewater in the upstream wastewater tank easily clogs the outlet and delivery pipes during flow. Furthermore, high-salt materials tend to form scale deposits on the heating tube walls, affecting equipment operation. Utility Model Content

[0003] This utility model addresses the problems mentioned above by designing a sulfur-containing wastewater evaporation module. It adds a side weir structure to the wastewater tank, increases the height difference between the discharge pipe and the inlet pipe, and utilizes the sedimentation tank principle to achieve the settling of impurities in the wastewater.

[0004] To achieve the above objectives, this utility model provides a sulfur-containing wastewater evaporation module, including a wastewater tank and a multi-effect evaporator. The multi-effect evaporator includes a first-effect evaporator, a second-effect evaporator, and a third-effect evaporator connected in series. The air outlet of the previous-stage evaporator is connected to the air inlet of the next-stage evaporator via a steam pipe, and the liquid outlet of the previous-stage evaporator is connected to the liquid inlet of the next-stage evaporator via a liquid delivery pipe. The wastewater tank, which has a hollow structure, is provided with an inlet pipe and an outlet pipe. The liquid inlet of the first-effect evaporator is connected to the outlet pipe of the wastewater tank via a liquid delivery pipe. A side weir structure is provided inside the cavity of the wastewater tank, and the outlet pipe has a height difference with the inlet pipe, with the outlet pipe located above the top slope height of the side weir structure.

[0005] Furthermore, the side weir structure includes a side slope and a top slope. The top slope is set parallel to the bottom wall of the wastewater tank, the side slope is set at an angle, and the two ends of the side slope are respectively connected to the top slope and the bottom wall.

[0006] Furthermore, a filter screen assembly is provided inside the wastewater tank. The filter screen assembly includes filter screen one and filter screen two. Filter screen one is fixedly connected to the wastewater tank and covers the bottom wall, while filter screen two is rotatably connected to the wastewater tank and covers the side slope.

[0007] Furthermore, one end of the second filter screen is hinged to the first filter screen, and the other end is movably connected to the wastewater tank via a transmission mechanism.

[0008] Furthermore, the transmission mechanism includes a motor, a lead screw, a nut seat, a guide assembly, a connecting rod, and a gourd-shaped lock. The wastewater tank is fixedly connected to a supporting edge. The motor and the guide assembly are disposed on the supporting edge. The output shaft of the motor drives and connects to the lead screw. The other end of the lead screw is rotatably connected to the supporting edge through a bearing seat. The nut seat cooperates with the lead screw for transmission. The connecting rod is disposed between the nut seat and the guide assembly. The gourd-shaped lock is disposed on the connecting rod and engages with the second filter screen.

[0009] Furthermore, the guiding assembly includes a guide light rod and limiting blocks symmetrically arranged on both sides of the guide light rod. One end of the connecting rod is fixedly connected to the nut seat, and the other end is slidably connected to the guide light rod.

[0010] Furthermore, the connecting rod is fixedly connected to multiple sets of lifting rings, and the gourd-shaped lock is flexibly connected to the lifting rings via ropes.

[0011] Furthermore, an activated carbon adsorption layer is provided between the filter mesh assembly and the wastewater tank.

[0012] Furthermore, the wastewater tank and the multi-effect evaporator are respectively fixedly connected to the base by brackets.

[0013] In summary, this utility model has the following advantages and beneficial technical effects: 1. This utility model adds a side weir structure to the wastewater tank, increases the height difference between the discharge pipe and the inlet pipe, prolongs the residence time of the waste liquid in the wastewater tank, allows impurities to settle naturally, further removes small particles, and the activated carbon adsorption layer simultaneously absorbs some of the dissolved organic matter in the waste liquid, thereby reducing the risk of blockage or scaling in the subsequent evaporator.

[0014] 2. This utility model adds a filter screen to the bottom wall and side slope of the wastewater tank. On the one hand, the filter screen intercepts large suspended particles in the waste liquid, thereby protecting the subsequent evaporator circulation pump and liquid delivery pipeline; on the other hand, it restricts the activated carbon adsorption layer, reducing the impact of large particulate impurities on the regeneration and utilization of the activated carbon adsorption layer.

[0015] 3. This utility model utilizes a lead screw and nut transmission and a gourd-shaped lock on the connecting rod to drive the second filter screen to rotate at a certain angle, thereby pouring large particles of suspended matter intercepted on the screen onto the first filter screen for easy centralized cleaning. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a cross-sectional schematic diagram of the wastewater tank in this utility model; Figure 3 This is a three-dimensional schematic diagram of some structures in this utility model; Figure 4 This is a front view schematic diagram of some structures in this utility model; Figure 5 This is a top view schematic diagram of part of the structure of this utility model; Figure 6 This is a diagram showing the usage state of the connecting rod in this utility model.

[0017] The reference numerals in the attached figures are: 1. Wastewater tank; 11. Feed pipe; 12. Discharge pipe; 13. Side slope; 14. Top slope; 15. Bottom wall; 16. Support edge; 17. Activated carbon adsorption layer; 2. Multi-effect evaporator; 21. First-effect evaporator; 22. Second-effect evaporator; 23. Third-effect evaporator; 3. Steam pipe; 4. Liquid delivery pipe; 5. Filter screen one; 6. Filter screen two; 7. Transmission mechanism; 71. Motor; 72. Lead screw; 73. Nut seat; 74. Guide rod; 75. Limiting block; 76. Connecting rod; 77. Gourd-shaped lock; 78. Lifting ring; 79. Rope; 8. Base; 9. Support. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-6 The present invention will be described in further detail as follows: like Figures 1-2 As shown, this embodiment discloses a sulfur-containing wastewater evaporation module, including a wastewater tank 1 and a multi-effect evaporator 2. The multi-effect evaporator 2 includes a first-effect evaporator 21, a second-effect evaporator 22 and a third-effect evaporator 23 connected in series. The air outlet of the first-stage evaporator is connected to the air inlet of the next-stage evaporator through a steam pipe 3, and the liquid outlet of the first-stage evaporator is connected to the liquid inlet of the next-stage evaporator through a liquid delivery pipe 4. The wastewater tank 1, which has a cavity structure, is provided with a feed pipe 11 and a discharge pipe 12. The liquid inlet of the first-effect evaporator 21 is connected to the discharge pipe 12 of the wastewater tank 1 through a circulation pump and a liquid delivery pipe 4. A side weir structure is provided in the cavity of the wastewater tank 1. The discharge pipe 12 has a height difference with the feed pipe 11, and the discharge pipe 12 is located above the height of the top slope 14 of the side weir structure.

[0019] like Figure 2As shown, the side weir structure includes a side slope 13 and a top slope 14. The top slope 14 is set parallel to the bottom wall 15 of the wastewater tank 1, and the side slope 13 is set at an incline. The higher end of the side slope 13 is connected to the top slope 14, and the lower end is connected to the bottom wall 15. A filter screen assembly is installed inside the wastewater tank 1. The filter screen assembly includes filter screen one 5 and filter screen two 6. Filter screen one 5 is snapped into the wastewater tank 1 and covers the bottom wall 15. Filter screen two 6 is rotatably connected to the wastewater tank 1 and covers the side slope 13. One end of filter screen two 6 is hinged to filter screen one 5, and the other end is movably connected to the wastewater tank 1 through a transmission mechanism 7.

[0020] like Figure 3 as well as Figure 6 As shown, the transmission mechanism 7 includes a motor 71, a lead screw 72, a nut seat 73, a guide assembly, a connecting rod 76, and a gourd-shaped lock 77. Supporting edges 16 are symmetrically welded to the top of the wastewater tank 1. The motor 71 and the guide assembly are respectively mounted on the supporting edges 16 on both sides. The outer casing of the motor 71 is fixedly connected to the supporting edges 16 by fastening screws. The output shaft is driven by a coupling to the lead screw 72. The other end of the lead screw 72 is rotatably connected to the supporting edges 16 via a bearing seat. The nut seat 73 cooperates with the lead screw 72 for transmission. The connecting rod 76 is located between the nut seat 73 and the guide assembly. The gourd-shaped lock 77 is located below the connecting rod 76 and, after passing through the filter mesh, fastens to the filter screen 6.

[0021] like Figures 4-6 As shown, the guide assembly includes a guide rod 74 and limiting blocks 75 symmetrically arranged on both sides of the guide rod 74. The limiting blocks 75 are welded to the support edge 16. One end of the connecting rod 76 is welded and fixed to the nut seat 73, and the other end is slidably connected to the guide rod 74. The sliding method is preferably a slider guide rail pair. Two sets of lifting rings 78 are welded below the connecting rod 76. The gourd-shaped lock 77 is flexibly connected to the lifting rings 78 by a rope 79. The elasticity coefficient of the rope 79 is preferably 2%~8%.

[0022] like Figure 1 As shown, an activated carbon adsorption layer 17 is filled between the filter screen assembly and the wastewater tank 1. The wastewater tank 1 and the multi-effect evaporator 2 are respectively fixedly connected to the base 8 via brackets 9.

[0023] The working principle of the sulfur-containing wastewater evaporation module of this utility model is as follows: In use, the waste liquid is injected into the wastewater tank 1 through the feed pipe 11. The feed pipe 11 is equipped with a device to prevent sewage backflow, preferably a pollution-proof isolation valve. The liquid level in the wastewater tank 1 gradually rises, and the impurities in the waste liquid naturally settle. When the liquid level exceeds the height of the discharge pipe 12, the waste liquid flows through the discharge pipe 12 to the multi-effect evaporator 2. It is evaporated by the evaporators connected in series, and the inorganic salts in the waste liquid are precipitated. The working principle of the multi-effect evaporator 2 is the existing technology and will not be described in detail in this embodiment.

[0024] After use, the transmission mechanism 7 drives the second filter screen 6 to rotate. First, the motor 71 is started, and the motor 71 outputs power to drive the lead screw 72 and the nut seat 73 to cooperate in transmission. The nut seat 73 is fed linearly along the lead screw 72. One end of the connecting rod 76 is fixed to the nut seat 73. Under the guidance of the guide rod 74, the connecting rod 76 moves synchronously linearly with the nut seat 73. At this time, the gourd-shaped lock 77 below the connecting rod 76 is fastened to the second filter screen 6. When the moving distance of the connecting rod 76 exceeds the tensile limit of the rope 79, the second filter screen 6 rotates to one side of the first filter screen 5, thereby dumping the large particles of suspended matter intercepted on the screen onto the first filter screen 5, which is convenient for subsequent centralized cleaning.

[0025] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A sulfur-containing wastewater evaporation module, comprising a wastewater tank and a multi-effect evaporator, characterized in that: The multi-effect evaporator includes a first-effect evaporator, a second-effect evaporator, and a third-effect evaporator connected in series. The air outlet of the previous-stage evaporator is connected to the air inlet of the next-stage evaporator via a steam pipe, and the liquid outlet of the previous-stage evaporator is connected to the liquid inlet of the next-stage evaporator via a liquid delivery pipe. The wastewater tank, which has a cavity structure, is provided with an inlet pipe and an outlet pipe. The liquid inlet of the first-effect evaporator is connected to the outlet pipe of the wastewater tank via a liquid delivery pipe. A side weir structure is provided inside the cavity of the wastewater tank. The outlet pipe and the inlet pipe have a height difference, and the outlet pipe is located above the top slope height of the side weir structure.

2. The sulfur-containing wastewater evaporation module according to claim 1, characterized in that: The side weir structure includes a side slope and a top slope. The top slope is set parallel to the bottom wall of the wastewater tank, the side slope is set at an angle, and the two ends of the side slope are respectively connected to the top slope and the bottom wall.

3. The sulfur-containing wastewater evaporation module according to claim 2, characterized in that: The wastewater tank is equipped with a filter screen assembly, which includes filter screen one and filter screen two. Filter screen one is fixedly connected to the wastewater tank and covers the bottom wall, while filter screen two is rotatably connected to the wastewater tank and covers the side slope.

4. The sulfur-containing wastewater evaporation module according to claim 3, characterized in that: One end of the second filter screen is hinged to the first filter screen, and the other end is movably connected to the wastewater tank through a transmission mechanism.

5. The sulfur-containing wastewater evaporation module according to claim 4, characterized in that: The transmission mechanism includes a motor, a lead screw, a nut seat, a guide assembly, a connecting rod, and a gourd-shaped lock. The wastewater tank is fixedly connected to a supporting edge. The motor and the guide assembly are mounted on the supporting edge. The output shaft of the motor drives and connects to the lead screw. The other end of the lead screw is rotatably connected to the supporting edge through a bearing seat. The nut seat cooperates with the lead screw for transmission. The connecting rod is located between the nut seat and the guide assembly. The gourd-shaped lock is located on the connecting rod and engages with the second filter screen.

6. The sulfur-containing wastewater evaporation module according to claim 5, characterized in that: The guiding assembly includes a guide light rod and limiting blocks symmetrically arranged on both sides of the guide light rod. One end of the connecting rod is fixedly connected to the nut seat and the other end is slidably connected to the guide light rod.

7. The sulfur-containing wastewater evaporation module according to claim 5, characterized in that: The connecting rod is fixedly connected to multiple sets of lifting rings, and the gourd-shaped lock is flexibly connected to the lifting rings via ropes.

8. The sulfur-containing wastewater evaporation module according to claim 3, characterized in that: An activated carbon adsorption layer is provided between the filter mesh and the wastewater tank.

9. The sulfur-containing wastewater evaporation module according to claim 1, characterized in that: The wastewater tank and the multi-effect evaporator are respectively fixedly connected to the base by brackets.

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