Dry waste gas condensate recovery system

Abstract

The utility model relates to the field of sludge treatment, in particular to a drying waste gas condensate recovery system, which comprises a drying machine, a support table, a liquid storage tank, a defoaming box, a fan, a cleaning structure and a recovery pipe group, a cyclone dust remover is arranged on one side of the drying machine, a spray tower is arranged on one side of the cyclone dust remover, and the spray tower is arranged on the other side of the cyclone dust remover. A supporting table is arranged on one side of the spraying tower, a condenser used for cooling gas is fixedly connected to the top of the supporting table, a liquid storage tank used for collecting liquid is arranged on one side of the supporting table, a pump body used for extracting the liquid is arranged on the side, away from the supporting table, of the liquid storage tank, and defoaming boxes are symmetrically and fixedly connected to the top of the supporting table. One side of the interior of the defoaming box is fixedly connected with a defoaming net, one side of the defoaming box is provided with a fan, the interior of the defoaming box is provided with a cleaning structure, and the two sides of the fan are respectively provided with a recovery pipe group. The drying waste gas condensate recovery system provided by the utility model has the advantages of realizing on-line cleaning of the demister and weakening the influence of condensate water on the fan.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sludge treatment especially relates to a dry exhaust gas condensate recovery system. BACKGROUND

[0002] Dry exhaust gas condensate recovery system is a kind of efficient waste gas treatment and resource recovery technology, it is mainly applied to industrial waste gas treatment field, especially for the waste gas containing volatile organic compounds, dry exhaust gas condensate recovery system passes through reducing waste gas temperature, makes the recyclable material in waste gas condense and collect in condenser, simultaneously recovers the heat energy in waste gas, can realize the cyclic utilization of resources and energy saving and emission reduction;

[0003] The working mode of the existing dry exhaust gas condensate recovery system is usually as follows: the sludge with water content of about 80% is continuously added into the drying machine by the delivery pump, the low-pressure saturated steam passes through the drying machine to transfer heat to the material, the wet base in the material is evaporated to form steam by heating, the material moves to the discharge port and is finally discharged, the steam evaporated by the drying machine is mixed with hot air and then enters the cyclone dust collector system under the suction of the negative pressure system to remove dust, to ensure that the moisture evaporated by the drying machine is quickly taken away, the gas purified by the cyclone dust collector enters the spray tower to be cooled, and then the gas is cooled by the condenser, is pumped by the fan and is sent into the incinerator for treatment, and the condensate is collected in the liquid storage tank and is pumped to the sewage treatment plant.

[0004] However, the existing process has the following problems: after the exhaust gas is condensed by the heat exchanger, the condensed water is gathered at the low point of the inlet and outlet pipe of the negative air suction fan, which directly affects the internal negative pressure of the drying machine, and in severe cases, the positive pressure and high temperature of the drying machine can scald the operator, and the whole system needs to be stopped, which needs to be improved.

[0005] Therefore, it is necessary to provide a new dry exhaust gas condensate recovery system to solve the above technical problems. UTILITY MODEL CONTENT

[0006] To solve the above technical problems, the utility model provides a dry exhaust gas condensate recovery system.

[0007] The dryness waste gas condensate recovery system provided by the utility model includes: a drying machine, a support table, a liquid storage tank, a defoaming box, a fan, a cleaning structure and a recovery pipe group, one side of the drying machine is equipped with a cyclone dust collector for dust removal of gas, one side of the cyclone dust collector is equipped with a spray tower for gas cooling, one side of the support table is equipped with the liquid storage tank for collecting liquid, one side of the liquid storage tank away from the support table is equipped with a pump body for extracting liquid, the top of the support table is fixedly connected with a condenser for cooling gas, one side of the support table is equipped with the liquid storage tank, one side of the liquid storage tank away from the support table is equipped with the pump body for extracting liquid, the top of the support table is fixedly connected with the defoaming box, one side of the defoaming box is equipped with the fan, one side of the fan is equipped with an incinerator, the inside of the defoaming box is fixedly connected with a defoaming net, one side of the defoaming box is equipped with the fan, one side of the fan is equipped with the incinerator, the inside of the defoaming box is provided with the cleaning structure for cleaning the defoaming net, and the two sides of the fan are provided with the recovery pipe group for recovering condensate water.

[0008] Preferably, the cleaning structure comprises: a first motor, a reciprocating screw rod, an auxiliary rod, a fixed plate and a spray head, the inside of the defoaming box is fixedly connected with the first motor, the output end of the first motor is fixedly connected with the reciprocating screw rod, the inside of the defoaming box is rotatably connected with the auxiliary rod, the reciprocating screw rod and the auxiliary rod are provided with the fixed plate, one end of the fixed plate close to the reciprocating screw rod is in meshing connection with the reciprocating screw rod, and a plurality of groups of spray heads are fixedly connected with one end of the fixed plate close to the defoaming net at equal intervals.

[0009] Preferably, the recovery pipe group comprises: a U-shaped pipe, a communication pipe and a liquid discharge pipe, the two ends of the fan are fixedly connected with the U-shaped pipe, the middle part of the U-shaped pipe is fixedly connected with the communication pipe, and the liquid discharge pipe is fixedly connected with one side of the U-shaped pipe.

[0010] Preferably, the highest point of the liquid discharge pipe is lower than the lowest point of the communication pipe, the highest point of the liquid discharge pipe is higher than the lowest point of the U-shaped pipe, and the communication pipe is designed to be inclined.

[0011] Preferably, the inside of the support top end is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a worm, a worm wheel is arranged between the two defoaming boxes, the worm wheel is in meshing connection with the worm, the two ends of the worm wheel are fixedly connected with transmission rods, three-way valves are fixedly connected with the pipeline communication positions of the two ends of the defoaming box, flow guide balls are slidably connected in the three-way valves, and the two flow guide balls are fixedly connected with corresponding transmission rods.

[0012] Preferably, the spray heads are high-pressure spray heads, and the auxiliary rod is a smooth round rod.

[0013] Preferably, the second motor rotates the worm wheel by 180 degrees at a time by rotating the worm.

[0014] Preferably, a baffle is fixedly connected with the top of the liquid discharge pipe in the U-shaped pipe.

[0015] Compared with related technologies, the dried waste gas condensate recovery system provided by this utility model has the following beneficial effects:

[0016] Achieve online cleaning of the demister:

[0017] This system achieves online cleaning of the demister screen by introducing a cleaning structure, reciprocating screw, auxiliary rod, fixed plate and nozzle. This design not only reduces maintenance time, but also improves production efficiency and reduces maintenance costs.

[0018] Reduce the impact of condensate on the fan:

[0019] This device, through the design of the recovery pipe assembly, allows condensate collected at the low points of the fan inlet and outlet pipes to flow into the U-shaped pipe. The highest point of the drain pipe is lower than the lowest point of the connecting pipe, and the highest point of the drain pipe is higher than the lowest point of the U-shaped pipe. This prevents the connecting pipe opening from being sealed by liquid. At the same time, a portion of the liquid can be retained. The liquid, along with the baffle, blocks the airflow through the drain pipe and the collection pipe. The inclined design of the connecting pipe allows the liquid to flow into the bottom of the U-shaped pipe, and then the liquid overflows from the drain pipe into the collection pipe. This not only improves the working efficiency of the fan but also prevents the operator from being scalded. Attached Figure Description

[0020] Figure 1 A schematic diagram of the process for the dry waste gas condensate recovery system provided by this utility model;

[0021] Figure 2 for Figure 1 The diagram shown is a structural schematic of the dried waste gas condensate recovery system.

[0022] Figure 3 for Figure 2 The diagram shows the structure of the top of the support platform;

[0023] Figure 4 for Figure 3 The diagram shows the structural schematic of the cleaning structure.

[0024] Figure 5 for Figure 3 The diagram shows the structure of the recovery pipe assembly.

[0025] Labels in the diagram: 1. Dryer; 2. Cyclone dust collector; 3. Spray tower; 4. Support platform; 5. Condenser; 6. Liquid storage tank; 7. Pump body; 8. Demister box; 9. Demister screen; 10. Fan; 11. Incinerator; 12. First motor; 13. Reciprocating screw; 14. Auxiliary rod; 15. Fixing plate; 16. Nozzle; 17. Electric heating network; 18. U-tube; 19. Connecting pipe; 20. Drain pipe; 21. Collection pipe; 22. Second motor; 23. Worm gear; 24. Worm wheel; 25. Transmission rod; 26. Three-way valve; 27. Guide ball; 28. Baffle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will make further detailed description to the utility model combined with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0027] The specific implementation of the utility model will be described in detail below combined with specific examples.

[0028] Please refer to Figures 1 to 5 A kind of dry exhaust condensate recovery system, the dry exhaust condensate recovery system includes: dryer 1, support table 4, liquid storage tank 6, defoaming box 8, fan 10, cleaning structure and recovery pipe group, one side of dryer 1 is equipped with cyclone dust collector 2 for dust removal to gas, one side of cyclone dust collector 2 is equipped with spray tower 3 for cooling gas, one side of support table 4 is equipped with spray tower 3, support table 4 top is fixedly connected with condenser 5 for cooling gas, one side of support table 4 is equipped with liquid storage tank 6 for collecting liquid, the side away from support table 4 of liquid storage tank 6 is equipped with pump body 7 for extracting liquid, support table 4 top is fixedly connected with defoaming box 8 in symmetry, defoaming net 9 is fixedly connected in the inside of defoaming box 8, one side of defoaming box 8 is equipped with fan 10, one side of fan 10 is equipped with incinerator 11, cleaning structure for cleaning defoaming net 9 is installed in the inside of defoaming box 8, recovery pipe group for recovering condensate is installed in the both sides of fan 10, second motor 22 is fixedly connected in the inside of support top end, the output of second motor 22 is fixedly connected with worm 23, worm gear 24 is equipped between the both ends of defoaming box 8, worm gear 24 is engagedly connected with worm 23, transmission rod 25 is fixedly connected in the both ends of worm gear 24, three-way valve 26 is fixedly connected in the pipe communication of the both ends of defoaming box 8, flow guide ball 27 is slidably connected in three-way valve 26, the both ends of flow guide ball 27 are fixedly connected with corresponding transmission rod 25, second motor 22 makes worm gear 24 rotate one hundred and eighty degrees by the mode of driving worm 23 to rotate once;

[0029] It should be noted that: worm gear 24 rotates one hundred and eighty degrees once, worm gear 24 drives transmission rod 25 to rotate, transmission rod 25 drives flow guide ball 27 to rotate, realizes the switching of the both ends of defoaming box 8;

[0030] Please refer to Figure 1 And Figure 4The cleaning structure comprises a first motor 12, a reciprocating screw rod 13, an auxiliary rod 14, a fixed plate 15 and a spray head 16, the first motor 12 is fixedly connected in the defoaming box 8, the output end of the first motor 12 is fixedly connected with the reciprocating screw rod 13, the auxiliary rod 14 is rotatably connected in the defoaming box 8, the fixed plate 15 is arranged between the reciprocating screw rod 13 and the auxiliary rod 14, one end of the fixed plate 15 close to the reciprocating screw rod 13 is in meshing connection with the reciprocating screw rod 13, a plurality of groups of spray heads 16 are fixedly connected at an equal distance on one end of the fixed plate 15 close to the defoaming net 9, the spray heads 16 are all high-pressure spray heads 16, and the auxiliary rod 14 is a smooth round rod;

[0031] It should be noted that the auxiliary rod 14 cooperates with the reciprocating screw rod 13 to limit the fixed plate 15, so that the fixed plate 15 is prevented from rotating along with the reciprocating screw rod 13;

[0032] Please refer to Figure 1 and Figure 5 The recovery pipe group comprises U-shaped pipes 18, communication pipes 19 and liquid discharge pipes 20, the U-shaped pipes 18 are fixedly connected at two ends of the fan 10 in a symmetrical mode, the communication pipes 19 are fixedly connected in the middle portions of the U-shaped pipes 18, the liquid discharge pipes 20 are fixedly connected on one side of the U-shaped pipes 18, the collecting pipe 21 is fixedly connected in the support table 4, the two liquid discharge pipes 20 are fixedly connected with the collecting pipe 21, one end of the collecting pipe 21 is fixedly connected with the middle portion of the condenser 5, the highest point of the liquid discharge pipe 20 is lower than the lowest point of the communication pipe 19, the highest point of the liquid discharge pipe 20 is higher than the lowest point of the U-shaped pipe 18, the communication pipe 19 is designed in an inclined mode, and the baffle 28 is fixedly connected in the U-shaped pipe 18 and located at the top of the liquid discharge pipe 20;

[0033] It should be noted that the highest point of the liquid discharge pipe 20 is lower than the lowest point of the communication pipe 19, the highest point of the liquid discharge pipe 20 is higher than the lowest point of the U-shaped pipe 18, and the communication pipe 19 is designed in an inclined mode, so that the mouth of the communication pipe 19 is not sealed by the liquid, and meanwhile, a part of the liquid can be reserved, the liquid cooperates with the baffle 28 to block the airflow from passing through the liquid discharge pipe 20 and the collecting pipe 21.

[0034] The working principle of the dry waste gas condensate recovery system is as follows:

[0035] When working,

[0036] The sludge with water content of about 80% is continuously added into the dryer 1 by a conveying pump, low-pressure saturated steam is passed through the dryer 1 to transfer heat to the material, the moisture in the material is evaporated to form steam under the heat, the material is dried, the moisture evaporated from the dryer 1 is mixed with hot air and then enters a cyclone dust collector for dust removal, so that the moisture evaporated from the dryer 1 is quickly taken away, the gas purified by the cyclone dust collector enters the spray tower 3 for cooling, then enters the condenser 5 for cooling, and is then taken away by the fan 10 and sent to the incinerator 11 for treatment, the condensed water gathered at the bottom of the inlet and outlet pipelines of the fan 10 flows into the bottom of the U-shaped pipe 18, when the liquid is gathered to a certain amount, the liquid will overflow from the top end of the liquid discharge pipe 20 and flow into the collecting pipe 21, and then flows back to the condenser 5 along the collecting pipe 21, the gas flows into the other end of the U-shaped pipe 18 from one end of the U-shaped pipe 18 through the communication pipe 19, and the condensed liquid is collected in the liquid storage tank 6 and is sent to a sewage treatment plant (not shown) by the pump body 7;

[0037] Replace the pipeline of the defoaming box 8:

[0038] Start the second motor 22, the second motor 22 drives the worm 23 to rotate, the worm 23 drives the worm gear 24 to rotate, the worm gear 24 drives the flow guide ball 27 slidingly connected in the three-way valve 26 to rotate one hundred and eighty degrees through the transmission rod 25.

[0039] Clean the defoaming net 9:

[0040] Start the first motor 12 in the idle defoaming box 8, the first motor 12 drives the reciprocating screw rod 13 to rotate, the reciprocating screw rod 13 drives the fixed plate 15 meshingly connected thereto to reciprocate in the vertical direction, the nozzle 16 sprays high-pressure water to clean the defoaming net 9, after cleaning, the electric heating net 17 is turned on to dry the defoaming net 9, and the electric heating net 17 is turned off after the defoaming net 9 is dried, and the cleaning is completed.

[0041] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion or direct or indirect application in other related technical fields by using the contents of the present application is also included in the patent protection range of the present application.

Claims

1. A dry waste gas condensate recovery system characterized by, The utility model relates to a kind of dryers, which include: A dryer (1) is provided with a cyclone dust collector (2) on one side for dust removal of gas, and a spray tower (3) is provided on one side of the cyclone dust collector (2) for gas cooling; A support table (4) is provided on one side of the spray tower (3), and a condenser (5) for cooling gas is fixedly connected to the top of the support table (4); A liquid storage tank (6) is provided on one side of the support table (4) for collecting liquid, and a pump body (7) is provided on the side of the liquid storage tank (6) away from the support table (4) for extracting liquid; A scum removal tank (8) is symmetrically fixedly connected to the top of the support table (4), and a scum removal net (9) is fixedly connected to one side inside the scum removal tank (8); A fan (10) is provided on one side of the scum removal tank (8), and a incinerator (11) is provided on one side of the fan (10); A cleaning structure is installed inside the scum removal tank (8) for cleaning the scum removal net (9); A recovery pipe group is installed on both sides of the fan (10) for recovering condensate water.

2. The dried off-gas condensate recovery system of claim 1, wherein, The cleaning structure includes a first motor (12), a reciprocating screw rod (13), an auxiliary rod (14), a fixed plate (15), a spray head (16), and an electric heating net (17). The first motor (12) is fixedly connected inside the scum removal tank (8), the output end of the first motor (12) is fixedly connected with the reciprocating screw rod (13), the auxiliary rod (14) is rotatably connected inside the scum removal tank (8), the fixed plate (15) is installed between the reciprocating screw rod (13) and the auxiliary rod (14), one end of the fixed plate (15) close to the reciprocating screw rod (13) is meshingly connected with the reciprocating screw rod (13), a plurality of spray heads (16) are equidistantly fixedly connected to one end of the fixed plate (15) close to the scum removal net (9), and the electric heating net (17) for drying the scum removal net (9) is symmetrically fixedly connected inside both ends of the scum removal tank (8).

3. The dried exhaust gas condensate recovery system of claim 1, wherein, The recovery pipe group includes a U-shaped pipe (18), a communication pipe (19), and a drainage pipe (20). The U-shaped pipe (18) is symmetrically fixedly connected to both ends of the fan (10), the communication pipe (19) is fixedly connected to the middle of the U-shaped pipe (18), the drainage pipe (20) is fixedly connected to one side of the U-shaped pipe (18), the collection pipe (21) is fixedly connected inside the support table (4), both drainage pipes (20) are fixedly connected with the collection pipe (21), and one end of the collection pipe (21) is fixedly connected with the middle of the condenser (5).

4. The dried off-gas condensate recovery system of claim 3, wherein, The highest point of the drainage pipe (20) is lower than the lowest point of the communication pipe (19), the highest point of the drainage pipe (20) is higher than the lowest point of the U-shaped pipe (18), and the communication pipe (19) is designed to be inclined.

5. The dried exhaust gas condensate recovery system of claim 1, wherein, The support top end is internally and fixedly connected with a second motor (22), an output end of the second motor (22) is fixedly connected with a worm (23), worm gears (24) are arranged between the two defoaming boxes (8), the worm gears (24) are in meshing connection with the worm (23), both ends of each worm gear (24) is fixedly connected with a transmission rod (25), three-way valves (26) are fixedly connected at the pipeline communication positions of the two ends of the defoaming box (8), flow guide balls (27) are slidably connected in the three-way valves (26), and the two flow guide balls (27) are fixedly connected with the corresponding transmission rods (25).

6. The dried exhaust gas condensate recovery system of claim 2, wherein, The spray heads (16) are all high-pressure spray heads (16), and the auxiliary rods (14) are smooth round rods.

7. The dried exhaust gas condensate recovery system of claim 5, wherein, The second motor (22) rotates the worm (23) to rotate the worm gears (24) by 180 degrees at a time.

8. The dried exhaust gas condensate recovery system of claim 3, wherein, A baffle (28) is fixedly connected to the top of the liquid discharge pipe (20) in the U-shaped pipe (18).

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