CN217265954U

CN217265954U - Waste film processing system

Info

Publication number: CN217265954U
Application number: CN202122506404.6U
Authority: CN
Inventors: 雷威; 闻伴康; 陈盛保; 何满添; 胡习斌; 袁注升
Original assignee: Huizhou TCL Environment Technology Co Ltd
Current assignee: Huizhou TCL Environment Technology Co Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-08-23
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a useless film piece processing system, including breaker, basket, electric block, pickling pond, delivery pump and reation kettle, wherein, the pickling pond the delivery pump with reation kettle links to each other in proper order. The device adopts electric block to transfer the basket that loads with useless film to pickling tank, handles useless film through elevated tank to reation kettle input 50% sulphuric acid, hydrogen peroxide and ferrous chloride solution, obtains product silver chloride under the condition of guaranteeing the silver rate of recovery, and by-product film and ferric sulfate water purifier have realized the recovery of useless film and have recycled.

Description

Waste film processing system

Technical Field

The utility model relates to a silver recovery technical field, concretely relates to useless film piece resourceful recovery processing system.

Background

The waste film consists of a photosensitive emulsion layer containing silver halide particles and a film base, and the silver content is about 1-3%. At present, the method for extracting silver from waste film mainly comprises the steps of carrying out silver removal by nitric acid soaking or liquid alkali heating, precipitating silver by sodium chloride, and carrying out reaction operation by adopting a reaction kettle; in a reaction kettle, however, the waste film is difficult to stir, and the stirring effect is poor, so that the recovery rate of silver is low; during discharging, the rubber sheet often blocks a discharging pipe, so that the production efficiency is influenced, and the problem of difficult repair is also caused; meanwhile, the nitric acid treatment process is used, so that the generated nitrogen oxide waste gas has peculiar smell and has safety and environmental protection risks; the treatment process parameters of liquid caustic soda heating are complex, and the requirement on equipment is high; in the traditional silver-water silver precipitation mode, secondary waste such as sodium nitrate waste liquid and the like can be generated, the utilization value is low, and the wastewater treatment cost is high; the copper-containing acidic etching waste liquid, which replaces copper with iron, generates ferrous chloride as a byproduct water purifier, but does not fully utilize the value thereof. Therefore, the waste film processing system is in need of further improvement.

SUMMERY OF THE UTILITY MODEL

Based on this, this application provides a useless film piece processing system to improve product value, reduce the processing cost.

The technical scheme of the utility model as follows:

the waste film sheet treatment system comprises a crusher, a basket, an electric hoist, an acid leaching tank, a conveying pump and a reaction kettle, wherein the acid leaching tank, the conveying pump and the reaction kettle are sequentially connected.

Optionally, in some embodiments of the present application, the crusher is provided with a discharge port at a lower end thereof, and the basket is provided below the discharge port.

Optionally, in some embodiments of the present application, the basket includes a basket cover and a basket body, and the basket body forms an accommodating space therein for accommodating the material output through the crusher discharge port.

Optionally, in some embodiments of the present application, the electric hoist is movably connected to the basket cover through a hook, and is connected to the basket body through the basket cover hook, so as to drive the basket body to move.

Optionally, in some embodiments of the present application, the basket cover area is not smaller than the opening of the acid bath to completely seal the acid bath; the upper opening of the basket is open, the rest surfaces are arranged into grid plate grids, and the area of each grid plate grid is 0.5-2 square centimeters.

Optionally, in some embodiments of the present application, the reaction kettle includes a motor and a stirring paddle, and the upper end of the reaction kettle is connected to the first elevated tank, the second elevated tank, and the third elevated tank, respectively, and is connected to the delivery pump through a lower end outlet; the first head tank is used for containing 50% sulfuric acid, the second head tank is used for containing hydrogen peroxide, and the third head tank is used for containing ferrous chloride solution.

Optionally, in some embodiments of the present application, the acid leaching tank includes filter cloth, lifting lugs are disposed at four corners of the filter cloth, and the filter cloth is connected to the basket cover lifting hooks via the lifting lugs and attached to the inner wall of the acid leaching tank to form a basket accommodating space; the acid leaching tank is connected with the delivery pump and the ground transferring tank through a bottom outlet.

Optionally, in some embodiments of the present application, the bottom wall of the acid bath includes a lower bottom surface and an upper bottom surface that is recessed toward the lower bottom surface to form a pyramidal space.

Optionally, in some embodiments of the present application, the delivery pump includes a first input end and a second input end, the first input end is connected to the lower end of the pickling tank, the second input end is connected to the lower end of the reaction kettle, and the corresponding connecting pipeline is controlled by a first valve and a second valve; the conveying pump further comprises a first output end and a second output end, the first output end is connected with the upper end of the acid leaching tank, the second output end is connected with the upper end of the reaction kettle, and the corresponding connecting pipeline is controlled through a third valve and a fourth valve.

Optionally, in some embodiments of the present application, the second valve and the third valve control a connection pipeline from the lower end of the reaction kettle to the upper end of the pickling tank; the first valve and the third valve control a return flushing pipeline of the pickling tank; and the first valve and the fourth valve control a connecting pipeline from the lower end of the pickling tank to the upper end of the reaction kettle.

The utility model provides a waste film processing system, wherein the relative position of the basket is arranged below the crusher, which is convenient for loading the waste film, reduces the labor intensity, and the basket is used for loading and transferring the waste film, thereby avoiding the blockage and having high working efficiency; the conveying pump and the pipeline are utilized to lead the acid liquor to flow back and wash the waste film pieces to replace stirring, thus accelerating the reaction rate and increasing the recovery rate of silver; on one hand, the acid leaching tank achieves the effect of acid leaching of the waste film, and meanwhile, the filter cloth is matched for filtering silver chloride, so that the occupied area of equipment is reduced; the elevated tank is used for respectively containing 50% of sulfuric acid and hydrogen peroxide, so that the peculiar smell is small, the waste water and waste gas treatment is simple, the safety risk is reduced, and the high-level tank has good environmental benefit and economic benefit.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of the waste film processing system of the present invention;

fig. 2 is the internal structure schematic diagram of the acid leaching tank of the utility model.

Description of the main element symbols: 1-a crusher; 2-a basket body; 3-basket cover; 4-electric hoist; 5-acid leaching pool; 6-a delivery pump; 7-a reaction kettle; 8-a first head tank; 9-a second elevated tank; 10-a third head tank; 11-a ground-transferring pool; 12-a first valve; 13-a second valve; 14-a third valve; 15-a fourth valve; 16-filter cloth.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Referring to the attached drawing 1, the waste film sheet treatment system comprises a crusher 1, a basket, an electric hoist 4, an acid leaching tank 5, a delivery pump 6 and a reaction kettle 7, wherein the acid leaching tank 5, the delivery pump 6 and the reaction kettle 7 are connected in sequence.

In one embodiment, the crusher 1 is provided with a discharge opening at the lower end, and the basket is arranged below the discharge opening. The relative position setting of basket is under breaker 1, is favorable to loading useless film, reduces intensity of labour. The crusher 1 crushes the collected waste film pieces to 2-5 cm multiplied by 2-5 cm, and then the waste film pieces are put down to a basket through a discharge hole.

In one embodiment, the basket comprises a basket body 2 and a basket cover 3, and the basket body 2 forms an accommodating space inside for accommodating the material output from the discharge port of the crusher 1. The size of the basket can be set according to actual production needs, for example, the size is set to 1000mm 800mm 500mm, waste film sheets are loaded and transferred through the basket, blockage is avoided, and the work efficiency is high.

In one embodiment, the electric hoist 3 is movably connected to the basket cover 3 through a hook, and is connected to the basket body 2 through the basket cover hook to drive the basket body 2 to move. The electric hoist 3 is connected with the basket through a lifting rope with a lifting hook, moves on the guide rail, and moves the basket body 2 loaded with the waste film pieces to the acid leaching tank 5 for acid leaching.

In one embodiment, the area of the basket cover 3 is not smaller than the opening of the acid leaching tank 5, so as to completely seal the acid leaching tank 5; the upper mouth of basket is opened, and all the other faces set up to grid board net, the area of grid board net is 0.5 ~ 2 square centimeters, and during the maintenance, the grid board is dismantled conveniently.

In one embodiment, the reaction kettle 7 comprises a motor and a stirring paddle, the upper end of the reaction kettle 7 is respectively connected with the first elevated tank 8, the second elevated tank 9 and the third elevated tank 10, and is connected with the delivery pump 6 through a lower end outlet; the first elevated tank 8 is used for containing 50% sulfuric acid, the second elevated tank 9 is used for containing hydrogen peroxide, and the third elevated tank 10 is used for containing ferrous chloride solution. According to the following steps: 1, adding 50 percent of sulfuric acid and 20 percent of hydrogen peroxide into a reaction kettle 7, and uniformly stirring. Three elevated tanks are arranged, so that auxiliary materials can automatically flow into the reaction kettle 7 through the elevated tanks, and the requirement of a pump is reduced. 50% sulfuric acid and hydrogen peroxide are used as acid liquor, so that the peculiar smell is small, the waste water and gas treatment is simple, and the environmental protection safety risk can be reduced. Silver is precipitated by using ferrous chloride, so that the silver chloride is obtained, and simultaneously, excessive 50% sulfuric acid and hydrogen peroxide can be fully utilized to obtain a byproduct water purifying agent ferric sulfate solution, so that the additional value of the ferrous chloride can be increased, and the wastewater treatment cost can be reduced.

In one embodiment, the transfer pump 6 is a fluorine-lined plastic centrifugal pump.

As shown in fig. 2, in an embodiment, the acid leaching tank 5 includes filter cloth 16, lifting lugs are arranged at four corners of the filter cloth 16, and are connected with the basket cover lifting hooks through the lifting lugs, and are attached to the inner wall of the acid leaching tank 5 to form a basket accommodating space; the pickling tank 5 is connected with the delivery pump 6 and the land transferring tank 11 through a bottom outlet. After being placed in the acid leaching pool 5, a basket can be used for acid leaching of the waste film; the filter cloth 16 in the acid leaching tank 5 can filter the silver chloride, so that the acid leaching tank achieves the effect of dual purposes, and the floor area of equipment is reduced.

In one embodiment, the bottom wall of the pickling tank 5 comprises a lower bottom surface and an upper bottom surface, the upper bottom surface is recessed towards the lower bottom surface to form a conical space, so that waste liquid can be easily drained, for example, the inner size of the upper body of the pickling tank 5 is set to 1200mm 1000mm 800mm, the height of the conical bottom surface is 100mm, and a partition plate with the thickness of 30mm is added in the middle.

In one embodiment, the delivery pump 6 comprises a first input end and a second input end, the first input end is connected with the lower end of the acid leaching tank 5, the second input end is connected with the lower end of the reaction kettle 7, and the corresponding connecting pipeline is controlled by a first valve 12 and a second valve 13; the delivery pump 6 further comprises a first output end and a second output end, the first output end is connected with the upper end of the pickling tank 5, the second output end is connected with the upper end of the reaction kettle 5, and the corresponding connecting pipeline is controlled through a third valve 14 and a fourth valve 15.

In one embodiment, the second valve 13 and the third valve 14 control a connecting pipeline from the lower end of the reaction kettle 7 to the upper end of the pickling tank 5; the first valve 12 and the third valve 14 control a return flushing pipeline of the pickling tank 5; the first valve 12 and the fourth valve 15 control a connecting pipeline from the lower end of the pickling tank 5 to the upper end of the reaction kettle 7. Opening the second valve 13, the third valve 14 and the delivery pump 6 to allow the acid liquor to be introduced into the soaked waste film pieces; after the waste film pieces are submerged, the first valve 12, the third valve 14 and the delivery pump 6 can enable the acid liquor to wash the waste film pieces; opening the first valve 12, the fourth valve 15 and the delivery pump 6 to enable the acid liquor to enter the reaction kettle; and opening the second valve 13, the third valve 14 and the delivery pump 6 to filter the slurry in the reaction kettle 7 on the filter cloth 16 of the acid leaching tank 5, depositing and storing the filtered silver chloride, and introducing the filtrate serving as a ferric sulfate water purifying agent into the ground transferring tank 11 for wastewater treatment. And the pickle liquor is output to the reaction kettle 7 from the acid leaching tank 5, mixed in the reaction kettle 7 and then output to the acid leaching tank 5 again. The acid liquor is refluxed by using the pump and the pipeline to wash the waste film, so that the reaction speed can be accelerated and the recovery rate of silver can be improved compared with a stirring process.

The flexible display module and the flexible display device provided by the embodiment of the present application are described in detail above, and a specific example is applied to illustrate the principle and the embodiment of the present application, and the description of the embodiment is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A waste film processing system comprises a crusher, a basket, an electric hoist, an acid leaching tank, a delivery pump and a reaction kettle, wherein the acid leaching tank, the delivery pump and the reaction kettle are sequentially connected;

the lower extreme of breaker is equipped with the discharge gate, the basket is located the discharge gate below.

2. The waste film sheet processing system of claim 1, wherein the basket comprises a basket cover and a basket body, the basket body forming an accommodating space therein for accommodating the material output through the crusher discharge port.

3. The waste film processing system according to claim 2, wherein the electric hoist is movably connected to the basket cover through a hook, and is connected to the basket body through the basket cover hook to drive the basket body to move.

4. The waste film sheet processing system according to claim 3, wherein the basket cover area is not smaller than the opening area of the acid bath to completely seal the acid bath; the upper opening of the basket is open, the rest surfaces are arranged into grid plate grids, and the area of each grid plate grid is 0.5-2 square centimeters.

5. The waste film processing system according to claim 1, wherein the reaction kettle comprises a motor and a stirring paddle, the upper end of the reaction kettle is connected with the first elevated tank, the second elevated tank and the third elevated tank respectively, and is connected with the delivery pump through a lower end outlet; the first head tank is used for containing 50% sulfuric acid, the second head tank is used for containing hydrogen peroxide, and the third head tank is used for containing ferrous chloride solution.

6. The waste film sheet treatment system according to claim 1, wherein the acid leaching tank comprises filter cloth, lifting lugs are arranged at four corners of the filter cloth, are connected with the basket cover lifting hooks through the lifting lugs and are attached to the inner wall of the acid leaching tank to form a basket accommodating space; the acid leaching tank is connected with the delivery pump and the ground transferring tank through a bottom outlet.

7. The waste film sheet processing system of claim 6, wherein the bottom wall of the pickling bath comprises a lower bottom surface and an upper bottom surface, the upper bottom surface being recessed toward the lower bottom surface to form a pyramidal space.

8. The waste film processing system according to claim 1, wherein the delivery pump comprises a first input end and a second input end, the first input end is connected with the lower end of the pickling tank, the second input end is connected with the lower end of the reaction kettle, and the corresponding connecting pipeline is controlled by a first valve and a second valve; the conveying pump further comprises a first output end and a second output end, the first output end is connected with the upper end of the acid leaching tank, the second output end is connected with the upper end of the reaction kettle, and the corresponding connecting pipeline is controlled through a third valve and a fourth valve.

9. The waste film processing system according to claim 8, wherein the second valve and the third valve control a connecting pipeline from the lower end of the reaction kettle to the upper end of the pickling tank; the first valve and the third valve control a return flushing pipeline of the pickling tank; and the first valve and the fourth valve control a connecting pipeline from the lower end of the pickling tank to the upper end of the reaction kettle.