CN211419885U

CN211419885U - Waste salt concentration treatment device

Info

Publication number: CN211419885U
Application number: CN201922160933.8U
Authority: CN
Inventors: 卢昊; 袁英刚; 高徐平; 肖扬
Original assignee: Anhui Chenxi Clean Technology Co ltd
Current assignee: Anhui Chenxi Clean Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-04
Anticipated expiration: 2029-12-06

Abstract

The invention provides a waste salt concentration treatment device, which relates to the field of waste salt concentration and comprises an evaporation mechanism, a gas-liquid separation mechanism, a precipitation mechanism and a condensation mechanism, wherein the top of the evaporation mechanism is communicated with the middle part of one side of the gas-liquid separation mechanism through a third communicating pipe. According to the invention, a novel and simple waste salt solution concentration treatment process is adopted, a single-effect evaporation technology is utilized, waste salts with different boiling points are separated in a centralized manner, resource recycling is realized, the problem of coking waste salt discharge is solved in a simpler and efficient manner, the separated condensate is concentrated by the waste salt solution, the condensate can be used for pre-desulfurization water supplement of coal gas produced by coking or other places, resource recycling is realized, all solutions in the system can be discharged into a settling pond when the device is in emergency shutdown, the device is ensured not to be discharged outside or scaled, no waste water is discharged in the process, a heat source of an evaporation device can select coke oven smoke, and the operation cost of steam heating can be saved.

Description

Waste salt concentration treatment device

Technical Field

The utility model relates to a waste salt concentration field especially relates to a waste salt concentration processing apparatus.

Background

China is a big country for steel production, the demand and production of corresponding coke are very large, and in the coke production process, coke oven gas as a main heat source needs to remove organic sulfur contained in the gas before entering a coke oven to be combusted, namely, pre-desulfurization. In the existing desulfurization process, a certain amount of waste salt solution is generated, the main component of the waste salt solution is water, the content of ammonia is about 0.7-1%, the content of waste salt is about 15%, and the waste salt comprises miscellaneous salts such as ammonium thiocyanate, ammonium thiosulfate, ammonium sulfate, suspended sulfur and the like. On average, ten thousand tons of coke are produced every year, and the waste salt water generated by the matched front-positioned desulfurization is about 40-50 tons/day, so that nearly twenty thousand tons of waste salt liquid are discharged every year, the environment is polluted, the enterprise burden is increased, and the resource waste is caused.

The prior treatment of the waste salt solution not only is integrated into a factory wastewater treatment system for centralized treatment, but also can be used for carrying out salt refining on the waste salt solution. However, under the current situation, the fine salt extraction process has high requirements, large investment cost, complex process and high operation cost. In this respect, we propose a new solution for treating waste salt, which can recover and treat the waste salt with less investment and simple process. Aiming at the waste salt liquid with complex salt content, a simple and effective waste salt treatment process is provided, substances with different boiling points are separated, and the construction investment, a large amount of water resources and the operation cost are reduced while the national environmental protection requirements are met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste salt concentration processing apparatus to solve above-mentioned technical problem.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme to realize: the utility model provides a waste salt concentration processing apparatus, includes evaporation mechanism, gas-liquid separation mechanism, deposits mechanism and condensation mechanism, its characterized in that:

the top of evaporation mechanism pass through the third communicating pipe with one side middle part intercommunication of gas-liquid separation mechanism, the top of gas-liquid separation mechanism pass through the fourth communicating pipe with top one side intercommunication of condensation mechanism, the top opposite side of condensation mechanism passes through communicating pipe and vacuum pump intercommunication, bottom one side of condensation mechanism is connected with the recovery tube, the bottom of gas-liquid separation mechanism pass through the second communicating pipe with deposit the top intercommunication of mechanism, and deposit the mechanism and be connected to the clear solution pump through the overflow pipe, the export of clear solution pump is connected to the bottom of evaporation mechanism through first communicating pipe, the bottom of evaporation mechanism still communicates through peristaltic pump and gas-liquid separation mechanism's bottom one side, the bottom of evaporation mechanism still is connected with the inlet tube.

Preferably, the inside of deposiing the mechanism is fixed with deposits the board, and the inside of deposiing the mechanism is located the below of deposiing the board and has seted up the toper pipe, the bottom of toper pipe is connected to the fixed row's material pipe intercommunication in the inboard bottom of mechanism of deposiing through the discharging pipe, and arranges the inside rotation of material pipe and be connected with the screw feed rod, one side of screw feed rod runs through the lateral wall that deposits the mechanism through the pivot and is connected with the driving motor transmission, and driving motor fixes on the outer wall that deposits the mechanism. The setting up of toper pipe and precipitate board can accelerate the sediment and the separation of material, can discharge solid waste salt fast through the screw feed rod, prevents to pile up too much and causes the jam, need not the user simultaneously and takes out labour saving and time saving manually.

Preferably, a plurality of blasting grooves are formed in the bottom of the inner side of the discharging pipe at equal intervals, blasting openings are formed in the blasting grooves, and the bottoms of the blasting openings are communicated with a second air pump fixed on the outer side of the precipitation mechanism through the blasting pipes in a penetrating mode. Through being provided with the cooperation setting of blasting groove, blasting tube and blast opening, the purpose is used for preventing that the inside waste salt of discharge pipe from blockking up.

Preferably, a plurality of first anti-slip grooves are formed in the sedimentation plate at equal intervals, air outlet holes are formed in the first anti-slip grooves, and the air outlet holes are communicated with a first air pump fixed on the outer side of the sedimentation mechanism through connecting pipes. The air outlet hole is formed in the settling plate, so that the blasting effect can be achieved, and the fixed waste salt accumulated on the first anti-skidding groove is flushed away.

Preferably, a plurality of second anti-slip grooves are formed in the conical tube, and the inner diameters of the second anti-slip grooves are sequentially reduced from top to bottom. The slope setting in second antiskid groove can accelerate the quick of fixed waste salt to appear.

Preferably, one side of the evaporation mechanism is respectively provided with an air inlet and an air outlet, and the air inlet is arranged above the air outlet.

Preferably, the first communicating pipe, the second communicating pipe, the third communicating pipe, the fourth communicating pipe, the water inlet pipe, the discharge pipe and the recovery pipe are all provided with control valves inside.

The utility model has the advantages that:

in the utility model, firstly, a novel and simple waste salt solution concentration treatment process is adopted, a single-effect evaporation technology is utilized to separate out substances with different boiling points, resource recycling is realized, the problem of coking waste salt discharge is solved in a simpler and efficient mode, the condensate separated by waste salt solution concentration can be used for coal gas preposed desulfurization water supplement or other places in coking production, the resource recycling is realized, when the device is in emergency stop, all the solution in the system can be discharged into a sedimentation tank, the device is ensured not to be discharged outside and scaled, no waste water is discharged in the process, the heat source of an evaporation device can select coke oven smoke, the operating cost of steam heating can be saved, secondly, a sedimentation mechanism is provided with a plurality of conical pipes for precipitating and cooling the concentrated waste salt solution, the waste salt in the solution is separated out, and the separated waste salt is discharged through a spiral feeding rod, through the cooperation of blasting mouth and second air pump, prevent that the waste salt granule from blockking up, need not artifical manual taking out, labour saving and time saving, first antiskid groove on precipitate board and the toper pipe all is used for assisting the sediment of waste salt with second antiskid groove for the efficiency of sediment, simultaneously, the venthole sets up with the cooperation of first air pump can prevent to remain waste salt on the first antiskid groove.

Drawings

FIG. 1 is a schematic structural view of a concentration device of the present invention;

FIG. 2 is a cross-sectional view of the settling mechanism of the present invention;

FIG. 3 is a schematic structural view of the tapered tube of the present invention;

FIG. 4 is a schematic structural view of the settling plate of the present invention;

fig. 5 is a schematic structural view of the discharge pipe of the present invention.

Reference numerals: 1. an evaporation mechanism; 101. an air inlet; 102. an air outlet; 2. a water inlet pipe; 3. a first communication pipe; 4. a peristaltic pump; 5. a control valve; 6. a gas-liquid separation mechanism; 7. a second communicating pipe; 8. a precipitation mechanism; 801. a settling plate; 8011. an air outlet; 8012. a first anti-slip groove; 8013. a connecting pipe; 802. A first air pump; 803. a tapered tube; 8031. a second anti-slip groove; 8032. a discharge pipe; 804. a drive motor; 805. a screw feed rod; 806. a discharge pipe; 8061. a blasting groove; 8062. a blast opening; 8063. Blasting a tube; 807. an overflow pipe; 808. a second air pump; 9. a clear liquid pump; 10. a third communicating pipe; 11. A fourth communicating pipe; 12. a condensing mechanism; 13. a recovery pipe; 14. a vacuum pump.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand, the present invention will be further explained below with reference to the following embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

Example 1

As shown in fig. 1-2, a waste salt concentration treatment device, an evaporation mechanism 1, a gas-liquid separation mechanism 6, a precipitation mechanism 8 and a condensation mechanism 12, wherein the top of the evaporation mechanism 1 is communicated with the middle part of one side of the gas-liquid separation mechanism 6 through a third communicating pipe 10, the top of the gas-liquid separation mechanism 6 is communicated with one side of the top of the condensation mechanism 12 through a fourth communicating pipe 11, the other side of the top of the condensation mechanism 12 is communicated with a vacuum pump 14 through a communicating pipe, one side of the bottom of the condensation mechanism 12 is connected with a recovery pipe 13, the bottom of the gas-liquid separation mechanism 6 is communicated with the top of the precipitation mechanism 8 through a second communicating pipe 7, the precipitation mechanism 8 is connected to a clear liquid pump 9 through an overflow pipe 807, the outlet of the clear liquid pump 9 is connected to the bottom of the evaporation mechanism 1 through a first communicating pipe 3, the bottom of the, the bottom of the evaporation mechanism 1 is also connected with a water inlet pipe 2.

When the device is used, the desulfurization waste salt solution sent out by the front desulfurization is injected into the single-effect evaporation mechanism 1, then the waste liquid, the concentrated solution separated by the gas-liquid separation mechanism 6 and the clear solution precipitated by the precipitation mechanism 8 are mixed and enter the evaporation device, at the moment, the evaporation mechanism 1 adopts low-pressure steam or coke oven smoke as a heat source, the waste salt solution entering the evaporation device is heated to 80 ℃ through heat exchange and evaporated and then enters the gas-liquid separation mechanism 6, the waste salt solution enters the middle part of the gas-liquid separation mechanism 6, vacuum pumping is carried out through the vacuum pump 14 on one side of the condensation mechanism 12, negative pressure is formed in the gas-liquid separation mechanism 6, the boiling point of the solution is reduced, most of volatile ammonia and water in the waste liquid are vaporized and enter the condensation mechanism 12 from the upper end of the gas-liquid separation mechanism 6, meanwhile, one part of the waste salt solution concentrated in the gas-liquid separation mechanism 6 is circulated back to the, the other part of the concentrated waste salt solution is discharged to the precipitation mechanism 8 from the bottom, the waste salt in the solution is separated out through precipitation and cooling in the precipitation mechanism 8, the separated solid waste salt is intensively cleaned, the precipitated supernatant is pumped back to the evaporation mechanism 1 through the clear liquid pump 9, the supernatant, the desulfurized waste salt solution and the concentrated waste salt solution in the gas-liquid separation mechanism 6 are mixed and enter the evaporation mechanism 1 for recycling and concentration again, in the process, the ammonia and water mixed steam separated from the gas-liquid separation mechanism 6 accounts for about 75 percent, wherein the ammonia content is about 1 percent, the mixed steam enters the condensation mechanism 12, the mixed steam is cooled and cooled through circulating water, the mixed steam is condensed into solution, and the condensate contains certain ammonia and can be recycled for front desulfurization of the coke oven smoke or used in other places in a factory.

Example 2

As shown in fig. 1-4, a waste salt concentration treatment device, an evaporation mechanism 1, a gas-liquid separation mechanism 6, a precipitation mechanism 8 and a condensation mechanism 12, wherein the top of the evaporation mechanism 1 is communicated with the middle part of one side of the gas-liquid separation mechanism 6 through a third communicating pipe 10, the top of the gas-liquid separation mechanism 6 is communicated with one side of the top of the condensation mechanism 12 through a fourth communicating pipe 11, the other side of the top of the condensation mechanism 12 is communicated with a vacuum pump 14 through a communicating pipe, one side of the bottom of the condensation mechanism 12 is connected with a recovery pipe 13, the bottom of the gas-liquid separation mechanism 6 is communicated with the top of the precipitation mechanism 8 through a second communicating pipe 7, the precipitation mechanism 8 is connected to a clear liquid pump 9 through an overflow pipe 807, the outlet of the clear liquid pump 9 is connected to the bottom of the evaporation mechanism 1 through a first communicating pipe 3, the bottom of the, the bottom of the evaporation mechanism 1 is also connected with a water inlet pipe 2.

The inside of deposiing mechanism 8 is fixed with deposits board 801, and the inside of deposiing mechanism 8 is located the below of deposiing board 801 and has seted up toper pipe 803, the bottom of toper pipe 803 is connected to the fixed row of material pipe 806 in the inboard bottom of deposiing mechanism 8 through discharging pipe 8032 and communicates, and the inside rotation of arranging material pipe 806 is connected with spiral feed rod 805, one side of spiral feed rod 805 is run through the lateral wall of deposiing mechanism 8 through the pivot and is connected with driving motor 804 transmission, and driving motor 804 is fixed on the outer wall of deposiing mechanism 8. A plurality of first anti-slip grooves 8012 are arranged on the settling plate 801 at equal intervals, an air outlet 8011 is arranged in each first anti-slip groove 8012, and the air outlet 8011 is communicated with a first air pump 802 fixed on the outer side of the settling mechanism 8 through a connecting pipe 8013. The tapered tube 803 is provided with a plurality of second anti-slip grooves 8031 therein, and the inner diameters of the second anti-slip grooves 8031 are sequentially reduced from top to bottom.

The waste salt solution entering the settling mechanism 8 firstly passes through the settling plate 801, the generated solid waste salt can sink on the first anti-slip groove 8012 under the action of gravity, the first anti-slip groove 8012 is obliquely arranged, the solid waste salt sinking on the first anti-slip groove 8012 can fall into the tapered pipe 803, the fixed waste salt particles falling into the tapered pipe 803 can slide into the discharging pipe 8032 under the action of the second anti-slip groove 8031, then fall into the discharging pipe 806 through the discharging pipe 8032, and finally the solid waste salt is discharged through the spiral feeding rod 805, and then is subjected to centralized treatment, if too much waste salt is accumulated in the first anti-slip groove 8012 to cause certain blockage, at the moment, the gas can be sprayed out through the gas outlet hole 8011 by using the first gas pump 802, so that the solid waste salt is discharged from the first anti-slip groove 8012, and the settling of the waste salt solution is accelerated.

Example 3

As shown in fig. 1-5, a waste salt concentration treatment device, an evaporation mechanism 1, a gas-liquid separation mechanism 6, a precipitation mechanism 8 and a condensation mechanism 12, wherein the top of the evaporation mechanism 1 is communicated with the middle part of one side of the gas-liquid separation mechanism 6 through a third communicating pipe 10, the top of the gas-liquid separation mechanism 6 is communicated with one side of the top of the condensation mechanism 12 through a fourth communicating pipe 11, the other side of the top of the condensation mechanism 12 is communicated with a vacuum pump 14 through a communicating pipe, one side of the bottom of the condensation mechanism 12 is connected with a recovery pipe 13, the bottom of the gas-liquid separation mechanism 6 is communicated with the top of the precipitation mechanism 8 through a second communicating pipe 7, the precipitation mechanism 8 is connected to a clear liquid pump 9 through an overflow pipe 807, the outlet of the clear liquid pump 9 is connected to the bottom of the evaporation mechanism 1 through a first communicating pipe 3, the bottom of the, the bottom of the evaporation mechanism 1 is also connected with a water inlet pipe 2.

A plurality of blasting grooves 8061 are equidistantly formed in the bottom of the inner side of the discharge pipe 806, a blasting opening 8062 is arranged in the blasting groove 8061, and the bottom of the blasting opening 8062 penetrates through the blasting groove 8061 through a blasting pipe 8063 and is communicated with a second air pump 808 fixed on the outer side of the precipitation mechanism 8.

When fixed waste salt granule discharges through screw pay-off pole 805 and arranges inside material pipe 806, if at this in-process, arrange the inside jam that takes place waste salt granule of material pipe 806, accessible second air pump 808 injects the blast hole 8062 on blast groove 8061 with the air through blast pipe 8063, and discharge through blast hole 8062, will get rid of the jam of waste salt granule finally through injecting into the air, thereby can discharge through the even quick waste salt granule of will fixing of screw pay-off pole 805 and arrange inside material pipe 806, moreover, the steam generator is simple in structure, and reasonable in arrangement.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a waste salt concentration processing apparatus, includes evaporation mechanism (1), gas-liquid separation mechanism (6), deposits mechanism (8) and condensation mechanism (12), its characterized in that:

the top of the evaporation mechanism (1) is communicated with the middle of one side of the gas-liquid separation mechanism (6) through a third communicating pipe (10), the top of the gas-liquid separation mechanism (6) is communicated with one side of the top of the condensation mechanism (12) through a fourth communicating pipe (11), the other side of the top of the condensation mechanism (12) is communicated with a vacuum pump (14) through a communicating pipe, one side of the bottom of the condensation mechanism (12) is connected with a recovery pipe (13), the bottom of the gas-liquid separation mechanism (6) is communicated with the top of the precipitation mechanism (8) through a second communicating pipe (7), the precipitation mechanism (8) is connected to a clear liquid pump (9) through an overflow pipe (807), the outlet of the clear liquid pump (9) is connected to the bottom of the evaporation mechanism (1) through a first communicating pipe (3), the bottom of the evaporation mechanism (1) is also communicated with one side of the bottom of the gas-liquid separation mechanism (6) through a peristaltic pump, the bottom of the evaporation mechanism (1) is also connected with a water inlet pipe (2).

2. The waste salt concentration treatment apparatus according to claim 1, wherein: deposit the inside of mechanism (8) and be fixed with sediment board (801), and the inside of depositing mechanism (8) is located the below of depositing board (801) and has seted up conical duct (803), the bottom of conical duct (803) is connected to the inboard fixed row of bottom material pipe (806) intercommunication of mechanism (8) through discharging pipe (8032), and arranges the inside rotation of material pipe (806) and be connected with spiral pay-off pole (805), the lateral wall that deposits mechanism (8) is run through the pivot in one side of spiral pay-off pole (805) is connected with driving motor (804) transmission, and driving motor (804) are fixed on the outer wall of depositing mechanism (8).

3. The waste salt concentration treatment apparatus according to claim 2, wherein: a plurality of blasting grooves (8061) are formed in the bottom of the inner side of the discharge pipe (806) at equal intervals, a blasting port (8062) is formed in the blasting groove (8061), and the bottom of the blasting port (8062) penetrates through the blasting groove (8061) through a blasting pipe (8063) and is communicated with a second air pump (808) fixed on the outer side of the precipitation mechanism (8).

4. The waste salt concentration treatment apparatus according to claim 2, wherein: a plurality of first anti-skidding grooves (8012) are formed in the settling plate (801) at equal intervals, an air outlet hole (8011) is formed in the first anti-skidding groove (8012), and the air outlet hole (8011) is communicated with a first air pump (802) fixed to the outer side of the settling mechanism (8) through a connecting pipe (8013).

5. The waste salt concentration treatment apparatus according to claim 2, wherein: a plurality of second anti-skidding grooves (8031) are formed in the conical pipe (803), and the inner diameters of the second anti-skidding grooves (8031) are sequentially reduced from top to bottom.

6. The waste salt concentration treatment apparatus according to claim 1, wherein: an air inlet (101) and an air outlet (102) are respectively formed in one side of the evaporation mechanism (1), and the air inlet (101) is arranged above the air outlet (102).

7. The waste salt concentration treatment apparatus according to claim 1, wherein: the water recycling system is characterized in that control valves (5) are arranged inside the first communicating pipe (3), the second communicating pipe (7), the third communicating pipe (10), the fourth communicating pipe (11), the water inlet pipe (2), the discharging pipe (8032) and the recycling pipe (13).