Wet-process acid making equipment

Abstract

The utility model discloses wet-process acid making equipment, and particularly relates to the technical field of wet-process acid making, the wet-process acid making equipment comprises a base, a waste heat boiler, an oxidation reactor and an absorption tower which are sequentially distributed from left to right are fixedly arranged at the top of the base, the waste heat boiler is communicated with the oxidation reactor through a pipeline, and the oxidation reactor is communicated with the absorption tower through a pipeline. The top of the base is fixedly provided with a wastewater recovery assembly, the wastewater recovery assembly comprises a sedimentation tank and a filtering tank which are fixed at the top of the base, the sedimentation tank is respectively communicated with the waste heat boiler, the oxidation reactor and the absorption tower, and a detachable hollow pipe is fixedly arranged in the filtering tank. According to the utility model, the waste heat boiler, the oxidation reactor and the absorption tower are matched to prepare acid, and the settling pond and the filtering tank are matched to filter wastewater generated by acid preparation, so that the wastewater can be recycled, the consumption of water resources can be reduced, and the production cost can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wet acid making technology, more specifically to a kind of wet acid making equipment. BACKGROUND

[0002] Hydrogen sulfide acid making process includes dry method and wet method, wherein wet method refers to that high-temperature furnace gas generated by hydrogen sulfide acid gas incineration is recovered high-temperature waste heat in waste heat boiler and then enters converter, sulfur dioxide is oxidized to sulfur trioxide under the action of catalyst in the presence of water vapor, and then directly condensed into sulfuric acid with water vapor in condenser. For example, the prior art with publication number CN110127629B discloses a device and process for preparing sulfuric acid from sulfide by wet method.

[0003] However, the above-mentioned prior art has the following problems when in use: during acid making, the equipment will generate wastewater, direct discharge of the wastewater will cause waste of water resources and increase production cost, which is very environmentally unfriendly. Furthermore, based on this, the utility model provides a wet acid making equipment capable of recycling wastewater. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a wet acid making equipment, which is capable of realizing recycling of wastewater by cooperating waste heat boiler, oxidation reactor and absorption tower to make acid and filtering and treating wastewater generated during acid making by cooperating sedimentation tank and filter tank, thereby being capable of reducing consumption of water resources and production cost to solve the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a wet acid making equipment, comprising a base, a waste heat boiler, an oxidation reactor and an absorption tower are fixedly arranged on the top of the base from left to right, the waste heat boiler and the oxidation reactor and the absorption tower are communicated through pipelines, a wastewater recycling assembly is fixedly arranged on the top of the base, the wastewater recycling assembly comprises a sedimentation tank and a filter tank fixed on the top of the base, the sedimentation tank is communicated with the waste heat boiler, the oxidation reactor and the absorption tower, a detachable hollow pipe is fixedly arranged in the filter tank, an activated carbon filter element, an ion exchange resin membrane and a reverse osmosis membrane are fixedly arranged in the hollow pipe from top to bottom, a medicine scattering and stirring assembly is arranged on the top of the sedimentation tank, a detachable cover plate is fixedly arranged on the top of the filter tank, and a suction assembly is arranged on the cover plate.

[0006] In a preferred embodiment, the medicine scattering and stirring assembly comprises a sliding block, the bottom end of the sliding block is fixed on the top of the sedimentation tank through two electric sliding platforms arranged on the front and back sides, a medicine inlet is formed in one side of the top of the sliding block, a hopper for storing flocculants and lime is fixedly arranged on one side of the top of the sliding block, and the bottom of the hopper is communicated with the medicine inlet.

[0007] In a preferred implementation form, the sliding block is internally provided with a cavity, the bottom end of the sliding block is rotatably provided with a plurality of stirring paddles, the top end of each of the plurality of stirring paddles penetrates the sliding block and is rotatably connected to the inner wall of the top end of the cavity, the plurality of stirring paddles are connected through a gear meshing assembly, and the gear meshing assembly is arranged in the cavity and used to drive the plurality of stirring paddles to rotate simultaneously.

[0008] In a preferred implementation form, the top end of the sliding block is fixedly embedded with a motor, the bottom end of an output shaft of the motor penetrates the sliding block and is fixed to the top end of one of the stirring paddles, and the motor is arranged at the bottom end of the hopper.

[0009] In a preferred implementation form, the suction assembly comprises a water pump one, the water pump one is fixed to the rear end of the sedimentation tank, a three-way pipe is communicated with the water inlet of the water pump one, a water outlet pipe is communicated with the water outlet of the water pump one, and one end of the water outlet pipe penetrates the cover plate and is communicated with the inside of the filter tank.

[0010] In a preferred implementation form, the top end of each of the three-way pipes is fixedly provided with a connecting rod, the bottom end of each of the connecting rods is fixedly provided with two electric push rods, and the two electric push rods are fixedly embedded in the top end of the sliding block.

[0011] In a preferred implementation form, the bottom end of the filter tank is fixedly penetrated with a conveying pipe, one end of the conveying pipe is communicated with a water pump two, and the water pump two is respectively communicated with the waste heat boiler, the oxidation reactor and the absorption tower through a hose, and is used to convey the filtered clean water.

[0012] The technical effects and advantages of the present application are as follows:

[0013] 1. The waste heat boiler, the oxidation reactor and the absorption tower are used to cooperate with acid production, the sedimentation tank and the filter tank are used to cooperate with wastewater produced in acid production, so that the wastewater can be reused, the consumption of water resources can be reduced, and the production cost can be reduced.

[0014] 2. The sliding block is moved left and right on the sedimentation tank, so that the spraying range can be improved, the reaction efficiency of the flocculant and the lime with the wastewater can be improved, and the motor drives the plurality of stirring paddles to rotate through the gear meshing assembly, so that the reaction efficiency of the flocculant and the lime with the wastewater can be improved.

[0015] 3. The sliding block drives the three-way pipes to move, and the electric push rods drive the three-way pipes to move up and down, so that the wastewater in the sedimentation tank can be automatically sucked, and the filtration efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1It is the overall structure schematic view of the utility model;

[0017] Figure 2 It is the overall structure rear view of the utility model;

[0018] Figure 3 It is the base, filter tank and hollow tube section view of the utility model;

[0019] Figure 4 It is the slider partial section view of the utility model;

[0020] Figure 5 It is the slider section view of the utility model.

[0021] The figure mark is: 1, base;2, waste heat boiler;3, oxidation reactor;4, absorption tower;5, waste water recovery assembly;6, pesticide spraying stirring assembly;7, cover plate;8, suction assembly;9, cavity;10, stirring paddle;11, gear engagement assembly;12, motor;13, connecting rod;14, electric push rod;15, delivery pipe;16, water pump two;

[0022] 501, sedimentation tank;502, filter tank;503, hollow tube;504, activated carbon filter element;505, ion exchange resin membrane;506, reverse osmosis membrane;

[0023] 601, slider;602, electric sliding table;603, dosing port;604, hopper;

[0024] 801, water pump one;802, tee;803, water outlet pipe. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] With reference to the drawings in the description, Figures 1-5 The utility model provides a kind of wet method equipment for making acid, including base 1, the base 1 top is fixed with from left to right sequentially distributed waste heat boiler 2, oxidation reactor 3, absorption tower 4, waste heat boiler 2 and oxidation reactor 3 between, oxidation reactor 3 and absorption tower 4 between are communicated by pipeline, the base 1 top is fixed with waste water recovery assembly 5, the waste water recovery assembly 5 includes the sedimentation tank 501 and filter tank 502 fixed in the base 1 top, the sedimentation tank 501 is communicated with waste heat boiler 2, oxidation reactor 3 and absorption tower 4 respectively;

[0027] The filter tank 502 is internally fixed with a detachable hollow tube 503, the hollow tube 503 is internally sequentially fixed from top to bottom with an activated carbon filter core 504, an ion exchange resin film 505 and a reverse osmosis membrane 506, the sedimentation tank 501 is provided with a medicine spraying and stirring assembly 6 at the top, the filter tank 502 is fixed with a detachable cover plate 7 at the top, and the cover plate 7 is provided with a suction assembly 8;

[0028] Specifically, the medicine spraying and stirring assembly 6 comprises a sliding block 601, the bottom end of the sliding block 601 is fixed on the top of the sedimentation tank 501 through two electric sliding platforms 602 on the front and rear sides, a medicine inlet 603 is formed on one side of the top of the sliding block 601, and a hopper 604 for storing flocculants and lime is fixed on one side of the top of the sliding block 601, and the bottom of the hopper 604 is communicated with the medicine inlet 603.

[0029] Specifically, the suction assembly 8 comprises a water pump one 801, the water pump one 801 is fixed at the rear end of the sedimentation tank 501, a three-way pipe 802 is communicated with the water inlet of the water pump one 801, a water outlet pipe 803 is communicated with the water outlet of the water pump one 801, one end of the water outlet pipe 803 penetrates through the cover plate 7 and is communicated with the inside of the filter tank 502, and the water pump one 801 and the three-way pipe 802 are used to realize automatic conveying of waste water.

[0030] The filter tank 502 is fixedly penetrated at the bottom end with a conveying pipe 15, one end of the conveying pipe 15 is communicated with a water pump two 16, and the water pump two 16 is communicated with the waste heat boiler 2, the oxidation reactor 3 and the absorption tower 4 through hoses respectively, for conveying filtered clean water.

[0031] In use, the sulfur-containing waste gas first enters the waste heat boiler 2 to recover high temperature, then the waste gas and oxygen are subjected to oxidation reaction in the oxidation reactor 3 under the action of the catalyst to convert sulfur dioxide into sulfur trioxide, the sulfur trioxide is reacted with water to generate sulfuric acid, and the sulfuric acid is absorbed and concentrated through the absorption tower 4 to obtain sulfuric acid products with different concentrations, so as to realize wet-process acid production.

[0032] The waste water generated by the operation of the waste heat boiler 2, the oxidation reactor 3 and the absorption tower 4 is transported to the sedimentation tank 501 through the waste water pipeline, then the flocculating agent and the lime are added to the sedimentation tank 501 through the hopper 604 and the lower charging port 603, the flocculating agent can accelerate the sedimentation efficiency of the waste water, and the lime can neutralize the acidity of the waste water, so as to facilitate the subsequent use, after a period of sedimentation, the waste water above the sedimentation tank 501 is sucked by the water pump one 801, when the waste water is transported into the filter tank 502, it is filtered by the activated carbon filter element 504, the ion exchange resin membrane 505 and the reverse osmosis membrane 506, and finally discharged from the water outlet pipe 803 at the bottom of the filter tank 502, and then transported to the waste heat boiler 2, the oxidation reactor 3 and the absorption tower 4 by the water pump two 16 respectively, so as to realize the recycling of the waste water, and further reduce the consumption of water resources and production cost.

[0033] With reference to the description accompanying drawings Figures 1-5 The sliding block 601 is internally provided with a cavity 9, a plurality of stirring paddles 10 are rotatably arranged at the bottom end of the sliding block 601, the top ends of the plurality of stirring paddles 10 penetrate the sliding block 601 and are rotatably connected with the inner wall at the top of the cavity 9, the plurality of stirring paddles 10 are connected through a gear meshing assembly 11, and the gear meshing assembly 11 is arranged in the cavity 9 and used to drive the plurality of stirring paddles 10 to rotate simultaneously.

[0034] A motor 12 is fixedly embedded at the top of the sliding block 601, the output shaft of the motor 12 penetrates the sliding block 601 at the bottom end and is fixedly connected with the top end of one of the stirring paddles 10, and the motor 12 is arranged at the bottom of the hopper 604. The motor 12 is used to drive the plurality of stirring paddles 10 to rotate, so that manual operation is not required, and the use is more time-saving and labor-saving.

[0035] The top end of the three-way pipe 802 is fixedly provided with a connecting rod 13, and the bottom end of the connecting rod 13 is fixedly provided with two electric push rods 14, which are fixedly embedded at the top end of the sliding block 601. The height of the three-way pipe 802 can be adjusted by using the electric push rod 14.

[0036] The electric sliding platform 602 is used to drive the sliding block 601 to move left and right on the sedimentation tank 501, so as to improve the spraying range and make the flocculating agent and the lime uniformly distributed, thereby improving the reaction efficiency of the flocculating agent and the lime with the waste water. The motor 12 is used to drive the stirring rod connected therewith to rotate, and the plurality of stirring rods are driven to rotate together through the gear meshing assembly 11, so as to further accelerate the reaction efficiency of the flocculating agent and the lime with the waste water. When the waste water is pumped, the three-way pipe can also be moved by using the sliding block 601, and the three-way pipe 802 can be moved up and down by using the electric push rod 14 to automatically pump the waste water.

[0037] The activated carbon filter element 504, the ion exchange resin membrane 505 and the reverse osmosis membrane 506 are all installed in the hollow pipe 503, after the device is not used, the cover plate 7 can be disassembled, then the hollow pipe 503 is disassembled to replace.

[0038] Finally: the above only is the preferred embodiment of the utility model has, and does not use for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A wet acid making device comprising a base (1), a waste heat boiler (2), an oxidation reactor (3) and an absorption tower (4) are fixedly arranged on the top of the base (1) from left to right, and the waste heat boiler (2) and the oxidation reactor (3) and the oxidation reactor (3) and the absorption tower (4) are communicated by pipelines, characterized in that: The base (1) top is fixedly provided with a wastewater recovery assembly (5); The wastewater recovery assembly (5) comprises a sedimentation tank (501) and a filter tank (502) fixed on the top of the base (1), the sedimentation tank (501) is communicated with the waste heat boiler (2), the oxidation reactor (3) and the absorption tower (4) respectively, and the filter tank (502) is internally fixedly provided with a detachable hollow pipe (503), the hollow pipe (503) is internally sequentially fixed from top to bottom with an activated carbon filter element (504), an ion exchange resin membrane (505) and a reverse osmosis membrane (506). The sedimentation tank (501) is provided with a medicine spraying and stirring assembly (6) on the top, the filter tank (502) is fixedly provided with a detachable cover plate (7) on the top, and the cover plate (7) is provided with a suction assembly (8).

2. A wet acid generation apparatus according to claim 1, wherein: The medicine spraying and stirring assembly (6) comprises a sliding block (601), the sliding block (601) is fixed on the top of the sedimentation tank (501) through two electric sliding tables (602) on the front and back sides, a medicine inlet (603) is formed on one side of the top of the sliding block (601), and a hopper (604) for storing flocculants and lime is fixed on one side of the top of the sliding block (601).

3. A wet acid generation apparatus according to claim 2, wherein: The sliding block (601) is internally provided with a cavity (9), a plurality of stirring paddles (10) are rotatably arranged at the bottom end of the sliding block (601), the top of each of the plurality of stirring paddles (10) penetrates the sliding block (601) and is rotatably connected with the inner wall of the top of the cavity (9), the plurality of stirring paddles (10) are connected through a gear meshing assembly (11), and the gear meshing assembly (11) is arranged in the cavity (9).

4. A wet acid generation apparatus according to claim 3, wherein: A motor (12) is fixedly embedded on the top of the sliding block (601), the output shaft of the motor (12) penetrates the sliding block (601) and is fixed to the top end of one of the stirring paddles (10), and the motor (12) is arranged at the bottom of the hopper (604).

5. The apparatus of claim 2, wherein: The suction assembly (8) comprises a water pump one (801), the water pump one (801) is fixed at the rear end of the sedimentation tank (501), a three-way pipe (802) is communicated with the water inlet of the water pump one (801), an outlet pipe (803) is communicated with the water outlet of the water pump one (801), and one end of the outlet pipe (803) penetrates the cover plate (7) and is communicated with the inside of the filter tank (502).

6. A wet acid generation apparatus according to claim 5, wherein: A connecting rod (13) is fixedly arranged at the top end of the three-way pipe (802), two electric push rods (14) are fixedly arranged at the bottom end of the connecting rod (13), and the two electric push rods (14) are fixedly embedded at the top end of the sliding block (601).

7. The apparatus of claim 1, wherein: A conveying pipe (15) is fixedly arranged at the bottom end of the filter tank (502), one end of the conveying pipe (15) is communicated with a water pump two (16), and the water pump two (16) is communicated with the waste heat boiler (2), the oxidation reactor (3) and the absorption tower (4) through a hose.

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