CN114075673A

CN114075673A - Low-emission pickling device

Info

Publication number: CN114075673A
Application number: CN202111396137.XA
Authority: CN
Inventors: 魏林旭
Original assignee: Shanghai Sinyet Industrial Automation Equipment Co ltd
Current assignee: Shanghai Sinyet Industrial Automation Equipment Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-02-22

Abstract

The invention discloses a low-emission pickling device, which comprises a pickling tank, wherein a pickling tank, a conveying mechanism and a recovery mechanism are arranged in the pickling tank; the conveying mechanism comprises a first support, a second support, a first conveying belt and a first driving assembly, a second driving assembly and a second conveying belt are arranged on the second support, a secondary cleaning assembly is arranged on the second support and comprises two cleaning covers, the recovery mechanism comprises a reservoir and an evaporation tank, a condensation backflow mechanism is arranged on a top wall in the pickling tank and is used for collecting evaporated hydrochloric acid and refluxing the evaporated hydrochloric acid into the pickling tank. The low-emission pickling device provided by the invention can be used for cleaning an object in the moving process, is simple in operation process, high in continuity and high in working efficiency, can be used for comprehensively cleaning the object, and can be used for preventing more water from existing in an evaporation tank and gradually separating hydrochloric acid in water flow, so that the separation efficiency is improved, and the emission of the hydrochloric acid is reduced.

Description

Low-emission pickling device

Technical Field

The application relates to the field of pickling equipment, in particular to a low-emission pickling device.

Background

The pickling device is a device for cleaning and removing oxide scale, which is an oxide formed on the surface of a strip steel sheet such as a cold-rolled steel sheet or a hot-rolled steel sheet, by reacting the oxide scale with an acid solution such as hydrochloric acid or sulfuric acid. As a general pickling apparatus, there is an apparatus comprising: the steel strip is continuously moved into the pickling tank, and the steel strip is immersed in the acid solution stored in the pickling tank, whereby the scale on the surface of the steel strip is continuously removed.

At present, a Chinese usage novel patent application with the patent number of CN201521073951.8 discloses an acid cleaning machine, which comprises a box body, a displacement mechanism and an acid cleaning structure, wherein a bottom plate is arranged in the box body, an operation box is also arranged outside the box body, and a three-color alarm lamp is arranged above the operation box; the pickling structure includes the aqueous solution ultrasonic wave, the acid solution ultrasonic wave, the material loading platform, the aqueous solution ultrasonic wave, the displacement mechanism on the early bottom plate of acid solution ultrasonic wave and material loading platform installation one by one from the left hand right side includes the X axle, the Y axle, Z axle and arm, X axle parallel arrangement is in the bottom plate top, the X axle and material loading platform, aqueous solution ultrasonic wave and acid solution ultrasonic wave are relative and have the certain distance, the Z axle sets up on the X axle, the bottom plate right-hand member is equipped with the Y axle, the arm is installed on the Z axle, be equipped with the electro-magnet on the arm. Putting the mesh cups into a frame, putting products into the mesh cups respectively, then automatically injecting water or acid, automatically sucking the mesh cups by a mechanical arm and putting the mesh cups into ultrasonic waves of an acid solution, ultrasonically vibrating the acid solution for 10 minutes, then taking out the mesh cups, putting the mesh cups into the ultrasonic waves of the water solution, vibrating for 5-10 minutes, then taking out the mesh cups, automatically discharging waste water, and finishing the pickling process.

In view of the above-mentioned related technologies, the inventor thinks that the object to be cleaned needs to be placed in the acid solution by the mechanical arm, and then the mechanical arm is used for taking out, so that the whole operation process is complex, the continuity is low, the working efficiency is low, some stains are easy to remain on the cleaned object, the cleaning is not thorough, and meanwhile, the hydrochloric acid remained on the object is easy to be discharged to the outside, and the environmental pollution is caused.

Disclosure of Invention

In order to simplify the washing operation process of article, improve cleaning efficiency, carry out all-round clearance to the filth on the article, reduce hydrochloric acid and volatilize to the external world, this application provides a low pickling device that discharges.

The low-emission pickling device provided by the application adopts the following technical scheme:

a low-emission pickling device comprises a pickling tank, wherein a pickling tank, a conveying mechanism and a recovery mechanism are arranged in the pickling tank;

the conveying mechanism comprises a first support, a second support, a first conveying belt and a first driving assembly, the first support and the second support are respectively located at two ends of the pickling tank, two ends of the first conveying belt are respectively arranged on the first support and the second support, the first conveying belt located between the first support and the second support is located in the pickling tank, and the first driving assembly is used for driving the first conveying belt to rotate in a reciprocating and circulating mode;

the second support is provided with a second driving assembly and a second conveyor belt, the second driving assembly is used for driving the second conveyor belt to rotate in a reciprocating and circulating mode, the first conveyor belt and the second conveyor belt are both provided with limiting pieces used for fixing articles, the first conveyor belt and the second conveyor belt move at the same speed, and the articles on the first conveyor belt can be automatically turned over onto the second conveyor belt in the moving process;

a secondary cleaning assembly is arranged on the second support and comprises two cleaning covers which are respectively positioned at two ends of the second support, and cleaning spray heads are arranged on one side wall of each cleaning cover close to the object;

retrieve the mechanism and include cistern and evaporation tank, the evaporation tank is located the second conveyer belt below, the cistern is located between evaporation tank and the second conveyer belt, roof in the pickling case is provided with condensation reflux mechanism, condensation reflux mechanism is arranged in collecting the hydrochloric acid of evaporation and will evaporate the hydrochloric acid reflux to the descaling bath.

By adopting the technical scheme, the object to be cleaned is placed in the limiting part on the first conveying belt, the first driving assembly drives the first conveying belt to rotate, the object on the first conveying belt enters the pickling tank along with the first conveying belt, the pickling tank cleans materials, the object leaves the pickling tank along with the first conveying belt, and the cleaning nozzle sprays the object on the first conveying belt.

In the conveying process of the first conveying belt, the articles are turned to the second conveying belt from ninety degrees from the first conveying belt, and in the conveying process of the articles on the second conveying belt, one surface of the articles, which is in contact with the first conveying belt, is conveniently cleaned, and the articles are cleaned in an all-around manner through two times of spray washing.

The hydrochloric acid mixed solution dripped from the first conveyor belt and the second conveyor belt enters the water storage tank, water in the water storage tank enters the evaporation tank, when the pH value of the solution in the evaporation tank meets a set value, the solution in the water storage tank flows into the evaporation tank, the solution is heated by the evaporation tank, the hydrochloric acid is volatilized, and the evaporated hydrochloric acid is collected by the condensation reflux mechanism and is refluxed into the pickling tank.

The whole cleaning process article is on first conveyer belt and second conveyer belt all the time, the in-process that removes at the article is cleaned it, the operation process is succinct, the continuity is high, high working efficiency can carry out omnidirectional clearance to the article, the cistern can avoid having more water in the evaporation pond, hydrochloric acid to in the rivers separates one by one, thereby improve separation efficiency, reduce the emission of hydrochloric acid, it discharges to the external world to have avoided remaining hydrochloric acid on the article, the pollution to the environment has been reduced.

Optionally, the first driving assembly includes a first driving motor, the first support, the pickling tank and the second support are all rotatably connected with a plurality of first rotating rollers, the first conveying belt is sleeved on the first rotating rollers, the first driving motor is coaxially and fixedly connected with one first rotating roller, a first rotating roller far away from the pickling tank on the second support is vertically arranged, and a first rotating roller near the pickling tank on the second support is horizontally arranged;

the second driving assembly comprises a second driving motor, a plurality of second rotating rollers are rotatably connected to the second support, the second rotating rollers are close to the pickling tank and are vertically arranged, the second rotating rollers are horizontally arranged, and the second driving motor is fixedly connected with the second rotating rollers in a coaxial mode.

Through adopting above-mentioned technical scheme, start first driving motor and second driving motor, first driving motor drives first conveyer belt through first live-rollers and rotates, and first conveyer belt is in the in-process that removes with the material on ninety degrees second conveyer belt of upset to make things convenient for clean shower nozzle to carry out omnidirectional cleaning to the article.

Optionally, a baffle is arranged on the second support, the baffle is located at the lower sides of the first conveyor belt and the second conveyor belt, and the baffle is used for supporting the articles.

Through adopting above-mentioned technical scheme, the baffle supports the article, places article and drops to the cistern in to improve device's stability.

Optionally, all be provided with the supporting shoe on four endpoints of descaling bath, every all rotate on the supporting shoe and be connected with the gyro wheel, the gyro wheel is used for supporting first conveyer belt, be provided with the pinch roller on the inner wall of descaling bath, the pinch roller is used for avoiding first conveyer belt to tilt up.

By adopting the technical scheme, the roller supports the first conveyor belt, so that the collision between the limiting part and the pickling tank is avoided, the pressing wheel compresses the first conveyor belt, and the pressing wheel prevents the first conveyor belt from tilting.

Optionally, a supporting roller is arranged between the two supporting blocks at the two ends of the pickling tank, and the first conveying belt is sleeved on the supporting roller.

Through adopting above-mentioned technical scheme, the backing roll supports first conveyer belt to reduce and take place the friction between the first conveyer belt, improved the stability of device.

Optionally, an ultrasonic cleaning machine or a stirring piece is arranged in the pickling tank.

Through adopting above-mentioned technical scheme, ultrasonic cleaner sends the ultrasonic wave, and the ultrasonic wave is cleared up the filth of adhering to on the article through high frequency vibration, stirs the liquid of piece in to the descaling bath and stirs, and the water that constantly flows has promoted the drop of the filth of adhering to on the article.

Optionally, the limiting member includes two adjacent rubber frames, and the two rubber frames are perpendicular to the moving direction of the first conveyor belt and the second conveyor belt.

Through adopting above-mentioned technical scheme, two rubber frames are fixed the article, and certain deformation can take place for the rubber frame simultaneously to be applicable to the change of first conveyer belt and second conveyer belt shape.

Optionally, the cistern is linked together with the evaporation pond, be provided with the pH value sensor in the evaporation pond, be provided with control switch in the cistern, control switch is arranged in controlling the liquid flow-in evaporation pond in the cistern, the pH value sensor is connected with control switch electricity.

Through adopting above-mentioned technical scheme, the liquid that drops on cistern storage first conveyer belt and the second conveyer belt, the cistern flows into liquid to the evaporation pond in, the evaporation pond evaporates hydrochloric acid in to solution, when pH value sensor detects that pH value is less than the threshold value in the evaporation pond, water in the evaporation pond is taken away, water in the control switch control cistern flows into in the evaporation pond, thereby avoid having more water in the evaporation pond, separate one by one hydrochloric acid in the rivers, thereby improve separation efficiency, reduce the emission of hydrochloric acid.

Optionally, be provided with the axis of rotation in the evaporation pond, the axis of rotation is connected with the blade along length direction, evaporation pond and coaxial fixedly connected with sprocket are passed to the one end of axis of rotation, the cover is equipped with the chain on the sprocket, second driving motor passes through the chain and drives the sprocket rotation.

Through adopting above-mentioned technical scheme, second driving motor passes through the chain and drives the sprocket rotation, and the sprocket drives the axis of rotation and rotates to drive the blade and stir the liquid in the evaporation pond, promote the evaporation of hydrochloric acid in the evaporation pond, reduce the emission of sewage.

Optionally, the roof of pickling tank is three horn shapes, condensation backward flow mechanism includes condensation backward flow board, condensation backward flow board sets up on the roof of pickling tank, condensation backward flow board is connected with the guiding gutter, the guiding gutter passes through honeycomb duct and pickling tank intercommunication.

Through adopting above-mentioned technical scheme, the hydrochloric acid that the evaporation pond evaporated assembles on the condensation backward flow board, and the hydrochloric acid on the condensation backward flow board flows into the guiding gutter, and hydrochloric acid in the guiding gutter flows into the descaling bath through the honeycomb duct to carry out recycle to hydrochloric acid, reduced the emission of hydrochloric acid steam.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the pickling tank, the water storage tank, the evaporation tank, the first conveyor belt and the second conveyor belt are arranged, the articles are always arranged on the first conveyor belt and the second conveyor belt in the whole cleaning process, and are cleaned in the moving process of the articles, so that the operation process is simple, the continuity is high, the working efficiency is high, the articles can be cleaned in all directions, the water storage tank can prevent more water from being in the evaporation tank, and hydrochloric acid in water flow is separated successively, therefore, the separation efficiency is improved, the discharge of hydrochloric acid is reduced, the discharge of residual hydrochloric acid on the articles to the outside is avoided, and the pollution to the environment is reduced;

according to the invention, the baffle is arranged, the baffle supports the object, and the object is placed and falls into the reservoir, so that the stability of the device is improved;

according to the pickling tank, the supporting block, the baffle, the roller and the pressing wheel are arranged, the roller supports the first conveying belt, so that the limiting piece is prevented from colliding with the pickling tank, and the pressing wheel is prevented from tilting the first conveying belt;

according to the invention, the supporting roller is arranged and supports the first conveyor belt, so that friction between the first conveyor belts is reduced, and the stability of the device is improved;

according to the invention, the rubber frames are arranged, the two rubber frames fix the object, and the rubber frames can deform to a certain extent, so that the conveyor belt is suitable for the shape change of the first conveyor belt and the second conveyor belt;

according to the invention, the pH value sensor and the control switch are arranged, the water storage tank stores the liquid falling from the first conveying belt and the second conveying belt, the water storage tank flows the liquid into the evaporation tank, the evaporation tank evaporates the hydrochloric acid in the solution, when the pH value sensor detects that the pH value in the evaporation tank is lower than a threshold value, the water in the evaporation tank is pumped away, and the control switch controls the water in the water storage tank to flow into the evaporation tank, so that more water in the evaporation tank is avoided, the hydrochloric acid in the water flow is separated successively, the separation efficiency is improved, and the discharge of the hydrochloric acid is reduced;

according to the invention, the rotating shaft and the blades are arranged, the second driving motor drives the chain wheel to rotate through the chain, and the chain wheel drives the rotating shaft to rotate, so that the blades are driven to stir liquid in the evaporation tank, evaporation of hydrochloric acid in the evaporation tank is promoted, and discharge of sewage is reduced;

according to the invention, the condensation reflux plate is arranged, hydrochloric acid evaporated from the evaporation tank is converged on the condensation reflux plate, hydrochloric acid on the condensation reflux plate flows into the diversion trench, and hydrochloric acid in the diversion trench flows into the pickling tank through the diversion pipe, so that the hydrochloric acid is recycled, and the discharge of hydrochloric acid steam is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a low-emission pickling apparatus according to the present invention;

FIG. 2 is a schematic diagram of the position of a secondary cleaning assembly in a low emission acid wash apparatus of the present invention;

FIG. 3 is a schematic diagram of a conveying mechanism of a low-emission pickling apparatus according to the present invention;

FIG. 4 is a schematic structural diagram of a pickling tank in a low-emission pickling apparatus according to the present invention;

FIG. 5 is a schematic view showing a connection relationship between a support block and a roller in a low-emission pickling apparatus according to the present invention;

FIG. 6 is a schematic structural diagram of a recycling mechanism in a low-emission acid washing apparatus according to the present invention;

FIG. 7 is a schematic structural diagram of a condensing reflux mechanism in a low-emission pickling apparatus according to the present invention;

FIG. 8 is a schematic structural view of a secondary cleaning assembly in a low emission acid cleaning apparatus according to the present invention;

FIG. 9 is a schematic view of a rubber frame of a low-emission pickling apparatus according to the present invention.

In the figure: 1. a pickling tank; 2. a pickling tank; 3. a transport mechanism; 31. a first bracket; 32. a second bracket; 33. a first conveyor belt; 34. a first drive assembly; 341. a first drive motor; 342. a first rotating roller; 35. a second drive assembly; 351. a second drive motor; 352. a second rotating roller; 36. a second conveyor belt; 37. a limiting member; 371. a rubber frame; 38. a secondary cleaning assembly; 381. a cleaning hood; 382. cleaning the spray head; 39. a baffle plate; 310. a support block; 311. a roller; 312. a pinch roller; 313. a support roller; 4. a recovery mechanism; 41. a reservoir; 42. an evaporation tank; 43. a pH value sensor; 44. a control switch; 45. a rotating shaft; 46. a blade; 47. a sprocket; 48. a chain; 5. a condensing reflux mechanism; 51. a condensate return plate; 52. a diversion trench; 53. a flow guide pipe; 6. an ultrasonic cleaning machine; 7. a stirring member.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, in an embodiment of the low-emission pickling apparatus provided by the present invention, the low-emission pickling apparatus includes a pickling tank 1, and a pickling tank 2, a conveying mechanism 3, and a recovery mechanism 4 are disposed in the pickling tank 1. The transfer mechanism 3 includes a first bracket 31, a second bracket 32, a first conveyor belt 33, and a first drive assembly 34. The first bracket 31 and the second bracket 32 are respectively located at both ends of the pickling tank 2. The two ends of the first conveyor belt 33 are respectively arranged on the first support 31 and the second support 32, the first conveyor belt 33 between the first support 31 and the second support 32 is arranged in the pickling tank 2, and the first driving assembly 34 is used for driving the first conveyor belt 33 to rotate in a reciprocating and circulating mode.

The second bracket 32 is provided with a second driving assembly 35 and a second conveyor belt 36, and the second driving assembly 35 of the second conveyor belt 36 is used for driving the second conveyor belt 36 to rotate in a reciprocating and circulating manner. The first conveyor belt 33 and the second conveyor belt 36 are provided with stoppers 37 for fixing articles, and the first conveyor belt 33 and the second conveyor belt 36 move at the same speed. The articles on the first conveyor 33 may automatically be flipped over onto the second conveyor 36 during the movement.

The stopper 37 includes two adjacent rubber frames 37, and the length directions of the two rubber frames 37 are perpendicular to the moving direction of the first conveyor belt 33 and the second conveyor belt 36. The two rubber frames 37 fix the objects, and the rubber frames 37 can deform to adapt to the shape change of the first conveyor belt 33 and the second conveyor belt 36.

The second frame 32 is provided with a secondary cleaning assembly 38, the secondary cleaning assembly 38 includes two cleaning covers 381, the two cleaning covers 381 are respectively disposed at two ends of the second frame 32, and a plurality of cleaning nozzles 382 are fixedly connected to a side wall of each cleaning cover 381 close to the object. The recovery mechanism 4 comprises a water storage tank 41 and an evaporation tank 42, the evaporation tank 42 is positioned below the second conveyor belt 36, the water storage tank 41 is fixedly connected onto the second support 32, the water storage tank 41 is positioned between the evaporation tank 42 and the second conveyor belt 36, a condensation reflux mechanism 5 is arranged on the top wall in the pickling tank 1, and the condensation reflux mechanism 5 is used for collecting evaporated hydrochloric acid and refluxing the evaporated hydrochloric acid into the pickling tank 2.

An object to be cleaned is placed in the limiting piece 37 on the first conveyor belt 33, the first driving assembly 34 drives the first conveyor belt 33 to rotate, the object on the first conveyor belt 33 enters the pickling tank 2 along with the first conveyor belt 33, and the pickling tank 2 cleans the material. The articles leave the pickling tank 2 with the first conveyor belt 33 and are sprayed by the cleaning spray nozzle 382 on the articles on the first conveyor belt 33.

During the conveying process of the first conveyor belt 33, the articles are turned over from the first conveyor belt 33 to the second conveyor belt 36, and during the conveying process of the articles on the second conveyor belt 36, the cleaning spray nozzle 382 sprays the articles twice, so that the articles are cleaned in all directions.

The solution mixed with hydrochloric acid dropped from the first conveyor belt 33 and the second conveyor belt 36 enters the reservoir 41, and when the water in the reservoir 41 enters the evaporation tank 42. When the pH value of the solution in the evaporation tank 42 meets a set value, the solution in the water reservoir 41 flows into the evaporation tank 42, the evaporation tank 42 heats the solution, the hydrochloric acid volatilizes, and the condensation reflux mechanism 5 collects the evaporated hydrochloric acid and makes the hydrochloric acid reflux to the pickling tank 2.

The cleaning process has the advantages that the objects are always on the first conveyor belt 33 and the second conveyor belt 36, the objects are cleaned in the moving process, the whole cleaning process is simple, the continuity is high, the working efficiency is high, the objects can be cleaned in all directions, meanwhile, the hydrochloric acid remained on the objects is prevented from being discharged to the outside, and the pollution to the environment is reduced.

The first driving assembly 34 includes a first driving motor 341, the first support 31, the pickling tank 2 and the second support 32 are all rotatably connected with a plurality of first rotating rollers 342, the first transmission belt 33 is sleeved on the first rotating rollers 342, and the first driving motor 341 is coaxially and fixedly connected with the first rotating rollers 342. Two first rotating rollers 342 are rotatably connected to the second bracket 32, one first rotating roller 342 far away from the pickling tank 2 is vertically arranged on the second bracket 32, and the other first rotating roller 342 on the second bracket 32 is horizontally arranged.

The second drive assembly 35 includes a second drive motor 351, and a plurality of second rotatable rollers 352 are rotatably coupled to the second frame 32, and a second rotatable roller 352 adjacent to the pickling tank 2 is vertically disposed. The other second rotating rollers 352 are horizontally arranged, and the second driving motor 351 is coaxially and fixedly connected with one second rotating roller 352.

The first driving motor 341 is started, the first driving motor 341 drives the first conveyor belt 33 to rotate through the first rotating roller 342, and the first conveyor belt 33 turns over the material onto the second conveyor belt 36 in the moving process, so that the cleaning nozzle 382 can conveniently perform all-directional cleaning treatment on the object.

The second support 32 is fixedly connected with a baffle 39, the baffle 39 is provided with a plurality of liquid leakage holes, the baffle 39 is positioned at the lower sides of the first conveyor belt 33 and the second conveyor belt 36, and the baffle 39 is used for supporting the articles. The baffle 39 supports the items and places them to fall into the reservoir 41, thereby improving the stability of the device.

Supporting blocks 310 are arranged at four end points of the pickling tank 2, a roller 311 is rotatably connected to each supporting block 310, and the roller 311 is used for supporting the first conveyor belt 33. A pressing wheel 312 is arranged on the inner wall of the pickling tank 2, and the pressing wheel 312 is used for pressing the first conveyor belt 33, so that the first conveyor belt 33 is prevented from tilting. The roller 311 supports the first conveyor belt 33, so that the stopper 37 is prevented from colliding with the pickling tank 2, and the pinch roller 312 prevents the first conveyor belt 33 from tilting.

Supporting rollers 313 are arranged between the two supporting blocks 310 at the two ends of the pickling tank 2, and the first conveying belt 33 is sleeved on the supporting rollers 313. The support rollers 313 support the first conveyor belts 33, thereby reducing friction occurring between the first conveyor belts 33.

An ultrasonic cleaning machine 6 is arranged in the pickling tank 2. The ultrasonic cleaner 6 emits ultrasonic waves, and the ultrasonic waves clean dirt attached to an object through high-frequency vibration. The pickling tank 2 is internally provided with a stirring part. The stirring member 7 is a blower or a stirring disk. The stirring member 7 stirs the liquid in the pickling tank 2, and the continuously flowing water promotes the dropping of the dirt attached to the objects.

The water reservoir 41 is communicated with an evaporation tank 42, a pH value sensor 43 is arranged in the evaporation tank 42, a control switch 44 is arranged in the storage tank, and the control switch 44 is used for controlling the liquid in the storage tank to flow into the evaporation tank 42. The pH value sensor 43 is electrically connected to the control switch 44. The water reservoir 41 stores the liquid falling from the first conveyor belt 33 and the second conveyor belt 36, the water reservoir 41 flows the liquid into the evaporation pool 42, the evaporation pool 42 evaporates the hydrochloric acid in the solution, when the pH value sensor 43 detects that the pH value in the evaporation pool 42 is lower than a threshold value, the water in the evaporation pool 42 is pumped away, the control switch 44 controls the water in the water reservoir 41 to flow into the evaporation pool 42, so that more water in the evaporation pool 42 is avoided, the hydrochloric acid in the water flow is separated successively, the separation efficiency is improved, and the discharge of the hydrochloric acid is reduced.

Be provided with axis of rotation 45 on the evaporation pond 42, axis of rotation 45 is connected with blade 46 along length direction, and evaporation pond 42 is passed to the one end of axis of rotation 45, and the coaxial fixedly connected with sprocket 47 of one end of axis of rotation 45 is overlapped and is equipped with chain 48 on the sprocket 47, and second driving motor 351 drives sprocket 47 through chain 48 and rotates. Second driving motor 351 drives sprocket 47 through chain 48 and rotates, and sprocket 47 drives axis of rotation 45 and rotates to drive blade 46 and stir the liquid in evaporation pond 42, promote the evaporation of hydrochloric acid in evaporation pond 42, reduce the emission of sewage.

The roof of descaling box 1 is triangle-shaped, and condensation reflux mechanism 5 includes condensation reflux board 51, and condensation reflux board 51 sets up on the roof of descaling box 1, and condensation reflux board 51 is connected with guiding gutter 52, and guiding gutter 52 communicates with descaling bath 2 through honeycomb duct 53. The hydrochloric acid evaporated by the evaporation tank 42 is converged on the condensation reflux plate 51, the hydrochloric acid on the condensation reflux plate 51 flows into the diversion trench 52, and the hydrochloric acid in the diversion trench 52 flows into the pickling tank 2 through the diversion pipe 53, so that the hydrochloric acid is recycled, and the discharge of hydrochloric acid steam is reduced.

The working principle is as follows:

an object to be cleaned is placed in the rubber frame 37 on the first conveyor belt 33, the first drive assembly 34 drives the first conveyor belt 33 to rotate, the object on the first conveyor belt 33 enters the pickling tank 2 along with the first conveyor belt 33, the pickling tank 2 cleans materials, the object leaves the pickling tank 2 along with the first conveyor belt 33, and the cleaning nozzle 382 sprays the object on the first conveyor belt 33.

The water reservoir 41 stores the liquid falling from the first conveyor belt 33 and the second conveyor belt 36, the water reservoir 41 flows the liquid into the evaporation pool 42, the evaporation pool 42 evaporates the hydrochloric acid in the solution, when the pH value sensor 43 detects that the pH value in the evaporation pool 42 is lower than a threshold value, the water in the evaporation pool 42 is pumped away, the control switch 44 controls the water in the water reservoir 41 to flow into the evaporation pool 42, so that more water in the evaporation pool 42 is avoided, the hydrochloric acid in the water flow is separated successively, the separation efficiency is improved, and the discharge of the hydrochloric acid is reduced.

The cleaning process has the advantages that the objects are always on the first conveyor belt 33 and the second conveyor belt 36, the objects are cleaned in the moving process, the whole cleaning process is simple, the continuity is high, the working efficiency is high, the objects can be cleaned in all directions, meanwhile, the hydrochloric acid remained on the objects is prevented from being discharged to the outside, and the pollution to the environment is reduced. The hydrochloric acid evaporated by the evaporation tank 42 is converged on the condensation reflux plate 51, the hydrochloric acid on the condensation reflux plate 51 flows into the diversion trench 52, and the hydrochloric acid in the diversion trench 52 flows into the pickling tank 2 through the diversion pipe 53, so that the hydrochloric acid is recycled, and the discharge of hydrochloric acid steam is reduced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A low-emission pickling device is characterized in that: the pickling tank comprises a pickling tank (1), wherein a pickling tank (2), a conveying mechanism (3) and a recovery mechanism (4) are arranged in the pickling tank (1);

the conveying mechanism (3) comprises a first support (31), a second support (32), a first conveying belt (33) and a first driving assembly (34), the first support (31) and the second support (32) are respectively located at two ends of the pickling tank (2), two ends of the first conveying belt (33) are respectively arranged on the first support (31) and the second support (32), the first conveying belt (33) located between the first support (31) and the second support (32) is located in the pickling tank (2), and the first driving assembly (34) is used for driving the first conveying belt (33) to rotate in a reciprocating and circulating mode;

the second support (32) is provided with a second driving assembly (35) and a second conveyor belt (36), the second driving assembly (35) is used for driving the second conveyor belt (36) to rotate in a reciprocating and circulating mode, the first conveyor belt (33) and the second conveyor belt (36) are respectively provided with a limiting piece (37) used for fixing the articles, the first conveyor belt (33) and the second conveyor belt (36) move at the same speed, and the articles on the first conveyor belt (33) can be turned over onto the second conveyor belt (36) in the moving process;

a secondary cleaning assembly (38) is arranged on the second bracket (32), the secondary cleaning assembly (38) comprises two cleaning covers (381), the two cleaning covers (381) are respectively arranged at two ends of the second bracket (32), and a cleaning spray head (382) is arranged on one side wall of each cleaning cover (381) close to the object;

retrieve mechanism (4) and include cistern (41) and evaporation pond (42), evaporation pond (42) are located second conveyer belt (36) below, cistern (41) are located between evaporation pond (42) and second conveyer belt (36), roof in pickling case (1) is provided with condensation reflux mechanism (5), condensation reflux mechanism (5) are arranged in collecting the hydrochloric acid of evaporation and will evaporate hydrochloric acid reflux pickling tank (2).

2. The low emission pickling device according to claim 1, characterized in that: the first driving assembly (34) comprises a first driving motor (341), a plurality of first rotating rollers (342) are rotatably connected to the first support (31), the pickling tank (2) and the second support (32), the first conveying belt (33) is sleeved on the first rotating rollers (342), the first driving motor (341) is coaxially and fixedly connected with one first rotating roller (342), one first rotating roller (342) far away from the pickling tank (2) is vertically arranged on the second support (32), and one first rotating roller (342) close to the pickling tank (2) is horizontally arranged on the second support (32);

the second driving assembly (35) comprises a second driving motor (351), a plurality of second rotating rollers (352) are connected to the second support (32) in a rotating mode, the second rotating rollers (352) close to the pickling tank (2) are vertically arranged, the second rotating rollers (352) are horizontally arranged, and the second driving motor (351) is coaxially and fixedly connected with the second rotating rollers (352).

3. The low emission pickling device according to claim 1, characterized in that: the second support (32) is provided with a baffle (39), the baffle (39) is located on the lower sides of the first conveyor belt (33) and the second conveyor belt (36), and the baffle (39) is used for supporting the articles.

4. The low emission pickling device according to claim 1, characterized in that: all be provided with supporting shoe (310) on four endpoints of descaling bath (2), every all rotate on supporting shoe (310) and be connected with gyro wheel (311), gyro wheel (311) are used for supporting first conveyer belt (33), be provided with pinch roller (312) on the inner wall of descaling bath (2), pinch roller (312) are used for avoiding first conveyer belt (33) to stick up.

5. The low emission pickling device according to claim 4, characterized in that: be located all be provided with backing roll (313) between two supporting blocks (310) at descaling bath (2) both ends, first conveyer belt (33) cover is established on backing roll (313).

6. The low emission pickling device according to claim 1, characterized in that: an ultrasonic cleaning machine (6) or a stirring piece (7) is arranged in the pickling tank (2).

7. The low emission pickling device according to claim 1, characterized in that: the limiting piece (37) comprises two adjacent rubber frames (371), and the two rubber frames (371) are perpendicular to the moving direction of the first conveyor belt (33) and the second conveyor belt (36).

8. The low emission pickling device according to claim 1, characterized in that: the water storage tank (41) is communicated with the evaporation tank (42), a pH value sensor (43) is arranged in the evaporation tank (42), a control switch (44) is arranged in the water storage tank (41), the control switch (44) is used for controlling liquid in the water storage tank (41) to flow into the evaporation tank (42), and the pH value sensor (43) is electrically connected with the control switch (44).

9. The low emission pickling device according to claim 8, wherein: be provided with axis of rotation (45) in evaporation pond (42), axis of rotation (45) are connected with blade (46) along length direction, evaporation pond (42) and coaxial fixedly connected with sprocket (47) are passed to the one end of axis of rotation (45), the cover is equipped with chain (48) on sprocket (47), second driving motor (351) drive sprocket (47) through chain (48) and rotate.

10. The low emission pickling device according to claim 1, characterized in that: the roof of pickling tank (1) is triangle-shaped, condensation reflux mechanism (5) are including condensation reflux board (51), condensation reflux board (51) set up on the roof of pickling tank (1), condensation reflux board (51) are connected with guiding gutter (52), guiding gutter (52) communicate with pickling tank (2) through honeycomb duct (53).