CN210237219U - Hydrofluoric acid effluent treatment plant - Google Patents
Hydrofluoric acid effluent treatment plant Download PDFInfo
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- CN210237219U CN210237219U CN202020170677.0U CN202020170677U CN210237219U CN 210237219 U CN210237219 U CN 210237219U CN 202020170677 U CN202020170677 U CN 202020170677U CN 210237219 U CN210237219 U CN 210237219U
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- hydrofluoric acid
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- acid wastewater
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Abstract
The utility model discloses a hydrofluoric acid wastewater treatment device, which comprises a base; the reaction kettle is arranged on the base and comprises a kettle body, a discharge opening, a kettle cover and an exhaust fan; the discharging mechanism comprises a material baffle plate arranged at the discharging opening and a driving piece; the stirring mechanism comprises a framework oil seal arranged at the bottom of the kettle body, a main shaft rotationally connected with the framework oil seal, blades arranged at the upper end of the main shaft and a first connector arranged at the bottom of the main shaft; the driving mechanism comprises a lifting platform arranged below the reaction kettle, a driving motor arranged on the lifting platform, a transmission shaft rotationally connected with the lifting platform, a gear set connecting the transmission shaft and a rotating shaft of the driving motor, and a second connector arranged at the top end of the transmission shaft, and the ton bucket is arranged below the discharge opening; the cooling mechanism comprises heat conducting water pipes wound around the kettle body. The utility model provides a when hydrofluoric acid waste water treatment, can produce volume waste water and heat, and the easy problem of the adhesion that hardens of resultant calcium fluoride.
Description
Technical Field
The utility model belongs to hydrofluoric acid waste liquid treatment field especially relates to a hydrofluoric acid effluent treatment plant.
Background
As a hazardous waste disposal unit, the waste hydrofluoric acid solution is usually received and disposed. The hydrofluoric acid waste liquid treatment process is that lime is added into the waste liquid in an acid-base reaction tank for neutralization to generate calcium fluoride precipitate. Due to the fact that the concentration of hydrofluoric acid is high, the amount of added lime is very large, and the weight ratio of the high-concentration hydrofluoric acid waste liquid to the lime can reach 1: 1. this presents the following difficulties:
1. the waste after treatment is very viscous and can not be stirred in an acid-base reaction tank, and a discharge pipeline is easy to block. Therefore, the product needs to be diluted by a large amount of water (10-20 times) before disposal. This would greatly reduce the efficiency of disposal while producing large amounts of waste water.
2. During treatment, a large amount of heat is released in an acid-base reaction, so that the temperature of waste liquid in the acid-base reaction tank is raised, and the maximum temperature resistance of the acid-base reaction tank is 65 ℃, so that the reaction rate needs to be controlled, and the temperature rise condition needs to be slowed down. This will greatly reduce the disposal efficiency.
3. After the treatment is finished, the waste liquid in the acid-base reaction tank needs to be subjected to filter pressing to separate solid from liquid, and the added lime and the generated calcium fluoride are easy to harden and adhere to a pipeline, so that the filter pressing is not favorable. This will also reduce the efficiency of the treatment.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a hydrofluoric acid wastewater treatment apparatus for solving the above-mentioned problems in the conventional hydrofluoric acid waste liquid treatment process.
The utility model provides a hydrofluoric acid effluent treatment plant, include:
a base;
the reaction kettle is arranged on the base and comprises a kettle body, a discharge opening arranged at the bottom of the kettle body, a kettle cover and an exhaust fan arranged on the kettle cover;
the discharging mechanism comprises a material baffle plate arranged at the discharging opening and a driving part for pushing the material baffle plate to open and close the discharging opening;
the stirring mechanism comprises a framework oil seal arranged at the bottom of the kettle body, a main shaft rotationally connected with the framework oil seal, blades arranged at the upper end of the main shaft and positioned in the kettle body, a first connector arranged at the bottom of the main shaft and a plane bearing arranged between the first connector and the lower surface of the kettle body;
the driving mechanism comprises a lifting platform arranged below the reaction kettle, a driving motor arranged on the lifting platform, a transmission shaft rotationally connected with the lifting platform, a gear set connecting the transmission shaft and a rotating shaft of the driving motor, and a second connector arranged at the top end of the transmission shaft, wherein the second connector corresponds to the first connector;
the ton barrel is arranged below the discharge opening; and
and the cooling mechanism comprises heat conducting water pipes wound around the kettle body.
Preferably, the cauldron body still includes first feed inlet and second feed inlet, hydrofluoric acid effluent treatment plant still include with the chemical industry pump of first feed inlet intercommunication, the chemical industry pump is used for the extraction hydrofluoric acid waste water.
Preferably, hydrofluoric acid effluent treatment plant still includes with the screw rod of second feed inlet intercommunication, screw rod is used for carrying lime to in the cauldron body.
Preferably, the hydrofluoric acid wastewater treatment device further comprises a flow meter arranged between the chemical pump and the first feed inlet, and a pH meter arranged in the kettle body.
Preferably, the inner surface of the reaction kettle and the outer surface of the blade are provided with polytetrafluoroethylene layers.
Preferably, the hydrofluoric acid wastewater treatment device comprises an exhaust gas washing treatment tower communicated with the exhaust fan.
The utility model discloses hydrofluoric acid effluent treatment plant of well high concentration drives big blade stirring rake with high-power agitator motor, enables the dope that hydrofluoric acid and lime reaction generated and stirs in reation kettle, the misce bene. So that no large amount of dilution water is required for disposal. And meanwhile, cooling water is sleeved on the periphery of the reaction kettle by a coil pipe clamp, so that heat generated by neutralization reaction is taken away in time. The addition amount of lime is controlled to ensure that the water content of the viscous material generated after reaction is lower than 65 percent, so that the viscous material can be directly buried in a landfill without filter pressing. Therefore, the treatment efficiency of the high-concentration hydrofluoric acid is greatly improved, the generation of waste water can be reduced, and the treatment is more environment-friendly. In addition, through setting up discharge opening, striker plate and promotion the striker plate switching the calcium fluoride after the driving piece messenger reaction of discharge opening is accomplished directly falls into the ton bucket from the discharge opening, avoids appearing the condition of pipe blockage.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a hydrofluoric acid wastewater treatment apparatus.
Detailed Description
The utility model provides a hydrofluoric acid effluent treatment plant, referring to fig. 1, this hydrofluoric acid effluent treatment plant includes base 10, reation kettle, shedding mechanism, rabbling mechanism, actuating mechanism, ton bucket 50 and cooling body 70. The reation kettle sets up on the base 10, including the cauldron body 21, set up discharge opening 22, kettle cover 23 and the setting in cauldron body 21 bottom be in air exhauster 24 on the kettle cover 23, air exhauster 24 is used for taking out lime dust and waste gas and the steam that the reaction produced, reaches radiating effect. The discharging mechanism comprises a material baffle plate 61 arranged at the discharging opening 22 and a driving part 62 for pushing the material baffle plate 61 to open and close the discharging opening 22; the rabbling mechanism is including setting up the skeleton oil blanket 31 of cauldron body 21 bottom, with skeleton oil blanket 31 rotates the main shaft 32 of being connected, sets up main shaft 32 upper end and being located blade 33 in the cauldron body 21, setting are in the first connector 34 and the setting of main shaft 32 bottom are in first connector 34 with planar bearing 35 between the cauldron body 21 lower surface.
The driving mechanism comprises a lifting platform 41 arranged below the reaction kettle, a driving motor 42 arranged on the lifting platform 41, a transmission shaft 43 connected with the lifting platform 41 in a rotating manner, a gear set 44 connected with the transmission shaft 43 and a rotating shaft of the driving motor 42, and a second connector 45 arranged at the top end of the transmission shaft 43, wherein the second connector 45 corresponds to the first connector 34. The connection surface of the first connector 34 and the second connector 45 is provided with a bulge for meshing connection, the lifting platform 41 comprises a liftable electric cylinder and a mounting frame arranged on the electric cylinder, the driving motor 42 is arranged on the mounting frame, and the lifting platform 41 can be used as a clutch between the driving mechanism and the stirring mechanism; when the lifting platform 41 is lifted up, the first connector 34 and the second connector 45 can be butted. The driving mechanism and the reaction kettle are arranged in a split manner, so that the hydrofluoric acid wastewater treatment device can be conveniently maintained when the hydrofluoric acid wastewater treatment device breaks down.
A ton bucket 50 is provided below the discharge opening 22 for receiving calcium fluoride solids produced by the reaction. Cooling body 70 is including establishing around the cauldron body 21 heat conduction water pipe all around, the outer wall winding setting of the preferred copper side pipe of heat conduction water pipe and the laminating cauldron body 21, cold water flows the radiating effect of realization cooling from heat conduction water pipe in the reaction process.
The utility model discloses hydrofluoric acid effluent treatment plant of well high concentration drives blade 33 stirring with high-power agitator motor, and the ropy thing that enables hydrofluoric acid and lime reaction to generate mixes in reation kettle. So that no large amount of dilution water is required for disposal. And meanwhile, cooling water is sleeved on the periphery of the reaction kettle by a coil pipe clamp, so that heat generated by neutralization reaction is taken away in time. The addition amount of lime is controlled to ensure that the water content of the viscous material generated after reaction is lower than 65 percent, so that the viscous material can be directly buried in a landfill without filter pressing. Therefore, the treatment efficiency of the high-concentration hydrofluoric acid is greatly improved, the generation of waste water can be reduced, and the treatment is more environment-friendly. In addition, the discharge opening 22, the material baffle 61 and the pushing are adopted, the material baffle 61 is opened and closed, the driving piece 62 of the discharge opening 22 enables calcium fluoride after the reaction is finished to directly fall into the ton barrel 50 from the discharge opening 22, and the phenomena of hardening and pipeline blockage are avoided.
Further, the kettle body 21 further comprises a first feed port 25 and a second feed port 26, the hydrofluoric acid wastewater treatment device further comprises a chemical pump communicated with the first feed port 25, and the chemical pump is used for pumping the hydrofluoric acid wastewater. The hydrofluoric acid wastewater treatment device also comprises a spiral conveying rod 81 communicated with the second feeding hole 26, and the spiral conveying rod 81 is used for conveying lime into the kettle body 21. The chemical pump is a pneumatic diaphragm pump, quantitative conveying of hydrofluoric acid wastewater can be achieved, quantitative conveying of lime powder can be achieved through the spiral conveying rod 81, accurate control is achieved, and waste is reduced.
Further, the hydrofluoric acid wastewater treatment device further comprises a flow meter 82 arranged between the chemical pump and the first feed inlet 25, and a pH meter 83 arranged in the kettle body 21. The flow meter 82 is arranged to obtain the accumulated flow so as to realize quantitative monitoring of the hydrofluoric acid wastewater. The pH meter 83 in the kettle body 21 can be used for measuring pH value so as to test the reaction condition in the kettle body 21.
Further, the inner surface of the reaction kettle and the outer surface of the blade 33 are provided with polytetrafluoroethylene layers. The hydrofluoric acid wastewater treatment device comprises an exhaust gas washing treatment tower communicated with the exhaust fan 24. The polytetrafluoroethylene layer is arranged to avoid corrosion of the kettle body 21, and the waste gas washing treatment tower is arranged to wash lime powder and waste gas to avoid environmental pollution.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the scope of the present description should be considered as being described in the present specification. The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. A hydrofluoric acid wastewater treatment device is characterized by comprising:
a base;
the reaction kettle is arranged on the base and comprises a kettle body, a discharge opening arranged at the bottom of the kettle body, a kettle cover and an exhaust fan arranged on the kettle cover;
the discharging mechanism comprises a material baffle plate arranged at the discharging opening and a driving part for pushing the material baffle plate to open and close the discharging opening;
the stirring mechanism comprises a framework oil seal arranged at the bottom of the kettle body, a main shaft rotationally connected with the framework oil seal, blades arranged at the upper end of the main shaft and positioned in the kettle body, a first connector arranged at the bottom of the main shaft and a plane bearing arranged between the first connector and the lower surface of the kettle body;
the driving mechanism comprises a lifting platform arranged below the reaction kettle, a driving motor arranged on the lifting platform, a transmission shaft rotationally connected with the lifting platform, a gear set connecting the transmission shaft and a rotating shaft of the driving motor, and a second connector arranged at the top end of the transmission shaft, wherein the second connector corresponds to the first connector;
the ton barrel is arranged below the discharge opening; and
and the cooling mechanism comprises heat conducting water pipes wound around the kettle body.
2. The hydrofluoric acid wastewater treatment device of claim 1, wherein the kettle further comprises a first feed port and a second feed port, and the hydrofluoric acid wastewater treatment device further comprises a chemical pump communicated with the first feed port, and the chemical pump is used for pumping the hydrofluoric acid wastewater.
3. The hydrofluoric acid wastewater treatment device of claim 2 further comprising a screw conveyor bar in communication with the second feed port, the screw conveyor bar being configured to convey lime into the tank.
4. The hydrofluoric acid wastewater treatment apparatus of claim 2 further comprising a flow meter disposed between the chemical pump and the first feed port, and a pH meter disposed in the tank.
5. The hydrofluoric acid wastewater treatment apparatus according to claim 1, wherein an inner surface of the reaction vessel and an outer surface of the blade are provided with a polytetrafluoroethylene layer.
6. The hydrofluoric acid wastewater treatment apparatus of claim 1, wherein the hydrofluoric acid wastewater treatment apparatus comprises an exhaust gas scrubbing treatment tower in communication with the suction fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170677.0U CN210237219U (en) | 2020-02-14 | 2020-02-14 | Hydrofluoric acid effluent treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020170677.0U CN210237219U (en) | 2020-02-14 | 2020-02-14 | Hydrofluoric acid effluent treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210237219U true CN210237219U (en) | 2020-04-03 |
Family
ID=69966822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020170677.0U Active CN210237219U (en) | 2020-02-14 | 2020-02-14 | Hydrofluoric acid effluent treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210237219U (en) |
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2020
- 2020-02-14 CN CN202020170677.0U patent/CN210237219U/en active Active
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