Condensing device for arsenic oxide

Abstract

The utility model provides a condensing device for arsenic oxide, and solves the problems that high-temperature gas and dust generated in the arsenic oxide preparation process are highly toxic, a filtering assembly of a filtering device cannot be replaced or cleaned in the arsenic oxide preparation process, and the working efficiency is influenced. By arranging the water supply tank, the water pump, the water supply pipe and the water mist nozzle, water mist is sprayed into the dust removal tank from top to bottom, solid particles in the dust removal tank are captured, and furnace gas containing dust entering the dust removal tank is filtered, so that the purpose of continuously filtering dust in the furnace gas generated in the arsenic oxide preparation process is achieved; and a water mist filtering mode is adopted, so that a filtering assembly does not need to be replaced or cleaned, the situation that highly toxic furnace gas leaks and threatens the health of workers is avoided, and meanwhile, the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of condensation equipment, in particular to a condensation device for arsenic oxide. Background Art

[0002] Arsenic oxide is an inorganic compound that is highly toxic and is the most commercially valuable arsenic compound. It is often used in the glass industry and in the preparation of medicines. It is also used as an insecticide, herbicide, etc. It is used as a common reference reagent and preservative. It is also used in the manufacture of arsenite. The preparation of arsenic oxide requires that the realgar (As4S4) ore be crushed and sent into a roasting furnace, where air is introduced for oxidative roasting. The resulting dust-containing furnace gas is then dedusted, condensed, gravity-sedimented, cooled and crystallized, and then electrostatically precipitated. The resulting solid is arsenic oxide.

[0003] Condensation is an extremely important step in the preparation of arsenic oxide. Condensers are commonly used in the market to complete the condensation operation of high-temperature gases generated in the preparation of arsenic oxide. However, it is difficult for condensers to clean the dust mixed in the high-temperature gases generated in the preparation of arsenic oxide.

[0004] In the prior art, there is a utility model patent with patent number 202021992988.1, which discloses a condensing device for arsenic oxide, including a base plate, a support column welded on the top of the base plate, a flat plate welded on the top of the support column, a cold air blower fixedly installed on the top of the flat plate, and a dust removal pipe fixedly installed on the right end of the cold air blower. The condensing device for arsenic oxide, through the coordinated use of a degassing pipe, a sleeve pipe and a dust removal pipe, enables the condensing device to filter dust particles in the furnace gas into the interior of the dust removal pipe through the dust filter plate inside the dust removal pipe, and absorb impurity gases in the furnace gas through the filter plate inside the degassing pipe. At the same time, the sleeve pipe with external threaded sleeves of the degassing pipe and the dust removal pipe can be rotated to remove the sleeve pipe after the preparation of arsenic oxide is completed to complete the cleaning and replacement of the dust removal pipe and the interior of the degassing pipe, thereby improving the purity of the arsenic oxide condensed by the condensing device and simplifying the cleaning and replacement steps of the filter device. However, the high-temperature gas and dust generated during the preparation of arsenic oxide are highly toxic, and the filter device cannot replace or clean the filter components during the preparation of arsenic oxide, which affects work efficiency. Utility Model Content

[0005] In order to solve the problem in the background technology that the high-temperature gas and dust generated in the process of preparing arsenic oxide are toxic, and the filter device cannot replace or clean the filter components during the process of preparing arsenic oxide, which affects the work efficiency, the utility model proposes an arsenic oxide condensing device.

[0006] The technical scheme of the utility model is: an arsenic oxide condensing device, comprising a base, a support rod extending upward is fixedly provided on the base, a fixing frame is fixedly provided on the support rod, a dust removal tank is fixedly provided on the fixing frame, the dust removal tank comprises an air intake interface pipe located on the outer peripheral surface of the bottom, the air intake interface pipe is tilted from top to bottom and from left to right, an air intake pipe is fixedly provided on the air intake interface pipe, and a suction fan is fixedly provided at one end of the air intake pipe away from the air intake interface pipe;

[0007] A water supply tank is fixedly provided on the base, a water pump is provided on the water supply tank, a water supply pipe is fixedly provided at the output end of the water pump, a water mist nozzle is fixedly provided at one end of the water supply pipe away from the water pump, a threaded interface pipe is fixedly connected to the top of the dust removal tank and communicated with the water mist nozzle, the water mist nozzle is threadedly connected in the threaded interface pipe, and the bottom end of the water mist nozzle penetrates into the dust removal tank;

[0008] The bottom end of the dust removal tank is fixedly connected and communicated with a U-shaped communicating pipe, the right end of the U-shaped communicating pipe is fixedly connected and communicated with a water collecting tank, and the water collecting tank is fixedly arranged on the base;

[0009] The dust removal tank also includes a connecting pipe located on the top outer peripheral surface, the connecting pipe is tilted from top to bottom and from right to left, and a condensing device is provided at one end of the connecting pipe away from the dust removal tank, and the condensing device is used to cool the furnace gas from which the dust is removed.

[0010] Preferably, the horizontal height of the right end of the U-shaped connecting pipe is higher than the bottom end of the dust removal tank, and the horizontal height of the right end of the U-shaped connecting pipe is lower than the air intake interface pipe.

[0011] Preferably, the condensing device includes a condensing tank fixedly arranged at one end of the connecting pipe away from the dust removing tank, the condensing tank extends along the length direction of the connecting pipe, the top end of the condensing tank is fixedly connected and communicated with a mounting pipe, a rubber plug is removably fixedly arranged in the mounting pipe, a transmission pipe is passed through the rubber plug, the bottom end of the transmission pipe passes through the rubber plug and is fixedly provided with a heat exchange pipe, the heat exchange pipe is located in the condensing tank, and the top end of the transmission pipe passes through the rubber plug and is fixedly provided with a refrigeration device.

[0012] Preferably, a support plate is fixedly provided on the top end of the support rod, and the refrigeration device is fixedly provided on the support plate.

[0013] Preferably, the heat exchange tube includes a spiral tube and a loop tube, the spiral tube and the loop tube are arranged in series, and the loop tube is located inside the spiral tube.

[0014] Preferably, the condensing tank is fixedly connected and communicated with a gas outlet interface pipe, and a gas delivery pipe is fixedly provided on the gas outlet interface pipe;

[0015] A reaction cylinder is fixedly arranged on the base, an absorbent is arranged in the reaction cylinder, and one end of the gas transmission pipe away from the condensation tank is immersed in the absorbent.

[0016] Preferably, the air outlet interface pipe is arranged obliquely from top to bottom and from left to right.

[0017] Advantages of the utility model: The utility model is provided with a water supply box, a water pump, a water supply pipe and a water mist nozzle, which spray water mist from top to bottom into the dust removal tank, capture solid particles in the dust removal tank, and filter the furnace gas containing dust entering the dust removal tank, so as to achieve the purpose of continuous dust filtering of the furnace gas generated in the process of preparing arsenic oxide. The water mist filtration method does not require replacement or cleaning of the filter assembly, thereby avoiding leakage of highly toxic furnace gas, which poses a threat to the health of workers, and improves work efficiency at the same time.

[0018] The utility model discloses that the air inlet interface pipe for the furnace gas to enter the dust removal tank is located at the bottom of the dust removal tank, and the connecting pipe for discharging the furnace gas is located at the top of the dust removal tank, so that the furnace gas moving upwards and the water mist moving downwards are more likely to collide and settle, thereby improving the filtering performance.

[0019] The utility model can collect water containing dust by arranging a U-shaped connecting pipe and a water collecting box at the bottom end of the dust removal tank. At the same time, the U-shaped connecting pipe can prevent furnace gas containing dust from entering the water collecting box, making it impossible to filter the furnace gas containing dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural front section view of the dust removal tank of the utility model.

[0023] In the figure: 1. base; 2. support rod; 3. fixing frame; 4. dust removal tank; 5. air inlet interface pipe; 6. connecting pipe; 7. U-shaped connecting pipe; 8. water collecting tank; 9. water supply tank; 10. water supply pipe; 11. water mist nozzle; 12. threaded interface pipe; 13. air inlet pipe; 14. condensation tank; 15. support plate; 16. refrigeration device; 17. transmission pipeline; 18. rubber plug; 19. heat exchange pipe; 20. gas transmission pipe; 21. reaction cylinder; 22. absorbent. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: A condensation device for arsenic oxide, such as Figure 1-2 As shown, it includes a base 1, on which is fixedly provided a support rod 2 extending upward, on which is fixedly provided a fixing frame 3, on which is fixedly provided a dust removal tank 4, and the dust removal tank 4 includes an air intake interface pipe 5 located on the outer peripheral surface of the bottom, the air intake interface pipe 5 is tilted from top to bottom and from left to right, and an air intake pipe 13 is fixedly provided on the air intake interface pipe 5, and an air suction fan is fixedly provided at one end of the air intake pipe 13 away from the air intake interface pipe 5, and the air suction fan is used for sending the furnace gas containing impurities generated in the preparation process of arsenic oxide into the dust removal tank 4 through the air intake pipe 13.

[0026] A water supply tank 9 is fixedly provided on the base 1, and a water pump is provided on the water supply tank 9. A water supply pipe 10 is fixedly provided on the output end of the water pump, and a water mist nozzle 11 is fixedly provided on the end of the water supply pipe 10 away from the water pump. The top of the dust removal tank 4 is fixedly connected and communicated with a threaded interface pipe 12, the water mist nozzle 11 is threadedly connected in the threaded interface pipe 12, and the bottom end of the water mist nozzle 11 penetrates into the dust removal tank 4.

[0027] By providing a water supply box 9, a water pump, a water supply pipe 10 and a water mist nozzle 11, water mist can be sprayed from top to bottom into the dust removal tank 4 to capture dust in the furnace gas. The dust is gradually settled to the bottom of the dust removal tank 4 due to the gravity of the water droplets, so as to achieve the purpose of continuous dust filtering of the furnace gas generated in the process of preparing arsenic oxide. There is no need to replace or clean the filter assembly, thus avoiding leakage of highly toxic furnace gas, which poses a threat to the health of the staff, and improving work efficiency.

[0028] The bottom end of the dust removal tank 4 is fixedly connected and communicated with a U-shaped connecting pipe 7, and the right end of the U-shaped connecting pipe 7 is fixedly connected and communicated with a water collecting box 8, which is fixedly arranged on the base 1; the U-shaped connecting pipe 7 can transport water containing dust to the water collecting box 8 for collection, and at the same time prevent the furnace gas containing dust from entering the water collecting box 8, making it impossible to filter the furnace gas containing dust; and the horizontal height of the right end of the U-shaped connecting pipe 7 is higher than the bottom end of the dust removal tank 4, and the horizontal height of the right end of the U-shaped connecting pipe 7 is lower than the air intake interface pipe 5, so that the water level of the filtered water is located between the air intake interface pipe 5 and the bottom end of the dust removal tank 4, so that some large particles of dust entering the dust removal tank 4 from the air intake interface pipe 5 can directly enter the filtered water under the action of inertia, thereby improving the filtering performance.

[0029] The dust removal tank 4 also includes a connecting pipe 6 located on the outer peripheral surface of the top, and the connecting pipe 6 is tilted from top to bottom and from right to left. The end of the connecting pipe 6 away from the dust removal tank 4 is provided with a condensing device for cooling the furnace gas from which the dust is removed. Specifically, the condensing device includes a condensing tank 14 fixedly arranged at the end of the connecting pipe 6 away from the dust removal tank 4, and the condensing tank 14 extends along the length direction of the connecting pipe 6. The top of the condensing tank 14 is fixedly connected and connected with a mounting pipe, and a rubber plug 18 is detachably fixedly arranged in the mounting pipe, and a transmission pipe 17 is passed through the rubber plug 18, and the bottom end of the transmission pipe 17 passes through the rubber plug 18 and is fixedly provided with Heat exchange tube 19, heat exchange tube 19 is located in condensing tank 14, heat exchange tube 19 comprises spiral tube and loop tube, spiral tube can increase pipeline length, thereby enhancing cooling efficiency, spiral tube and loop tube are arranged in series and loop tube is located inside spiral tube, the top end of transmission pipeline 17 passes through rubber plug 18 and is fixed with refrigeration device 16; the top end of support rod 2 is fixed with support plate 15, refrigeration device 16 is fixed on support plate 15, support plate 15 can reduce the distance between refrigeration device 16 and heat exchange tube 19, reduce the length of transmission pipeline 17, thereby reduce heat loss in the transmission process of refrigeration device 16.

[0030] The condensing device can cool the furnace gas entering the condensation tank 14 and the water mist entering with the furnace gas, condensing them into water droplets, which then enter the dust removal tank 4 through the connecting pipe 6. At the same time, it can cool and condense some toxic gases in the furnace gas into liquid, reducing subsequent processing costs.

[0031] An air outlet interface pipe is fixedly connected to and communicated with the condensing tank 14, and an air supply pipe 20 is fixedly arranged on the air outlet interface pipe. The air outlet interface pipe is tilted from top to bottom and from left to right, which can prevent the condensed water in the condensing tank 14 from entering the air supply pipe 20 through the air outlet interface pipe; a reaction cylinder 21 is fixedly arranged on the base 1, and an absorbent 22 is arranged in the reaction cylinder 21, and one end of the air supply pipe 20 away from the condensing tank 14 is immersed in the absorbent 22; by arranging the reaction cylinder 21 and the absorbent 22, toxic gases that are not completely removed in the furnace gas can be absorbed, preventing a small amount of toxic gases from escaping into the air to cause damage to the health of the workers, and avoiding pollution to the environment.

[0032] Working principle: When in use, the suction fan delivers the dust-containing furnace gas generated in the process of preparing arsenic oxide into the dust removal tank 4 through the air inlet pipe 13, and sprays water mist from top to bottom into the dust removal tank 4 through the water supply box 9, water pump, water supply pipe 10 and water mist nozzle 11 to capture the dust in the furnace gas. The dust gradually settles to the bottom of the dust removal tank 4 due to the gravity of the water droplets, and is transported to the water collecting box 8 for collection through the U-shaped connecting pipe 7. At the same time, the filtered furnace gas enters the condensation tank 14 through the connecting pipe 6, exchanges heat with the cold air emitted by the heat exchange pipe 19 for cooling, and cools part of the toxic gas in the furnace gas to condense into liquid. The remaining furnace gas enters the reaction cylinder 21 through the gas pipe 20 to react with the absorbent 22 to absorb the remaining small amount of toxic gas.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A condensation device for arsenic oxide, Features: The utility model comprises a base (1), a support rod (2) extending upward is fixedly provided on the base (1), a fixing frame (3) is fixedly provided on the support rod (2), a dust removal tank (4) is fixedly provided on the fixing frame (3), the dust removal tank (4) comprises an air intake interface pipe (5) located on the outer peripheral surface of the bottom, the air intake interface pipe (5) is arranged obliquely from top to bottom and from left to right, an air intake pipe (13) is fixedly provided on the air intake interface pipe (5), and a suction fan is fixedly provided on one end of the air intake pipe (13) away from the air intake interface pipe (5); A water supply tank (9) is fixedly provided on the base (1), a water pump is provided on the water supply tank (9), a water supply pipe (10) is fixedly provided on the output end of the water pump, a water mist nozzle (11) is fixedly provided on the end of the water supply pipe (10) away from the water pump, a threaded interface pipe (12) is fixedly connected to and communicated with the top end of the dust removal tank (4), the water mist nozzle (11) is threadedly connected in the threaded interface pipe (12), and the bottom end of the water mist nozzle (11) penetrates into the dust removal tank (4); The bottom end of the dust removal tank (4) is fixedly connected to and communicated with a U-shaped communicating pipe (7), the right end of the U-shaped communicating pipe (7) is fixedly connected to and communicated with a water collecting tank (8), and the water collecting tank (8) is fixedly arranged on the base (1); The dust removal tank (4) further comprises a connecting pipe (6) located on the outer peripheral surface of the top, the connecting pipe (6) being arranged obliquely from top to bottom and from right to left, and a condensing device being provided at one end of the connecting pipe (6) away from the dust removal tank (4), the condensing device being used to cool the furnace gas from which the impurities have been removed.

2. The arsenic oxide condensing device according to claim 1, Features: The horizontal height of the right end of the U-shaped connecting pipe (7) is higher than the bottom end of the dust removal tank (4), and the horizontal height of the right end of the U-shaped connecting pipe (7) is lower than the air inlet interface pipe (5).

3. The condensation device for arsenic oxide according to claim 1, Features: The condensing device comprises a condensing tank (14) fixedly arranged at one end of the connecting pipe (6) away from the dust removal tank (4), the condensing tank (14) extending along the length direction of the connecting pipe (6), the top end of the condensing tank (14) being fixedly connected to and communicated with a mounting pipe, a rubber plug (18) being detachably fixedly arranged in the mounting pipe, a transmission pipe (17) being passed through the rubber plug (18), the bottom end of the transmission pipe (17) passing through the rubber plug (18) and being fixedly provided with a heat exchange pipe (19), the heat exchange pipe (19) being located in the condensing tank (14), the top end of the transmission pipe (17) passing through the rubber plug (18) and being fixedly provided with a refrigeration device (16).

4. The arsenic oxide condensing device according to claim 3, Features: A support plate (15) is fixedly provided at the top end of the support rod (2), and a refrigeration device (16) is fixedly provided on the support plate (15).

5. The arsenic oxide condensing device according to claim 3, Features: The heat exchange tube (19) comprises a spiral tube and a loop tube, the spiral tube and the loop tube are arranged in series, and the loop tube is located inside the spiral tube.

6. The arsenic oxide condensing device according to claim 3, Features: A gas outlet interface pipe is fixedly connected to and communicated with the condensation tank (14), and a gas delivery pipe (20) is fixedly provided on the gas outlet interface pipe; A reaction cylinder (21) is fixedly provided on the base (1), an absorbent (22) is provided in the reaction cylinder (21), and an end of the gas transmission pipe (20) away from the condensation tank (14) is immersed in the absorbent (22).

7. The condensation device for arsenic oxide according to claim 6, Features: The air outlet interface pipe is arranged obliquely from top to bottom and from left to right.

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