Deacidification tower reboiler

Abstract

The utility model discloses a deacidification tower reboiler which comprises an outer shell, the outer shell is cylindrical, the upper portion and the lower portion of the outer shell are respectively communicated with an inductor and a liquid outlet, the right side of the upper portion of the outer shell is provided with an exhaust port, the right side of the lower portion of the outer shell is provided with a raw material port, and two partition plates are fixedly installed on the inner wall of the middle of the outer shell. A closed cavity is formed between the two partition plates and the inner wall of the middle of the outer shell, heated gas is introduced into the hot gas inlet, liquid with a toxic part in an acidic toxic liquid mixture is vaporized in advance due to the lower boiling point to form a vapor-liquid mixture, and due to the fact that the density of the vapor-liquid mixture is smaller than that of pure liquid, the vapor-liquid mixture can be vaporized in advance. When the material is deacidified, an upward buoyancy force is generated, toxic gas is conveyed upwards from the evaporation pipe and then is separated out from the exhaust port, and meanwhile, liquid at the bottom of the outer shell is continuously supplemented into the outer shell due to high density, so that automatic deacidification of the material, separation and removal of the harmful material are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization, in particular to a deacidification tower reboiler. Background Art

[0002] During the preparation and tanning stages of leather production, a large amount of wastewater is generated. This wastewater has large water volume, large fluctuations in water quality and quantity, high pollution load, and complex composition. It includes some sulfides, nitrites, heavy metal chromium, etc. and has certain toxicity. Utility Model Content

[0003] The purpose of this utility model is to solve the problem of some liquids with toxic components produced during leather production in the prior art.

[0004] Therefore, based on the above-mentioned problem, the utility model proposes a deacidification tower reboiler, which includes an outer shell, which is cylindrical, and the upper and lower parts of the outer shell are respectively connected to a sensor and a liquid outlet, an exhaust port is provided on the right side of the upper part of the outer shell, and a raw material port is provided on the right side of the lower part of the outer shell, and two partitions are fixedly installed on the inner wall in the middle of the outer shell, and a closed chamber is formed between the two partitions and the inner wall in the middle of the outer shell.

[0005] Preferably: a plurality of guide plates are installed inside the closed chamber formed between the two partitions and the outer shell, the length of the guide plates is smaller than the diameter of the outer shell, and one part of the guide plates is fixedly connected to the left side of the outer shell, and the other part of the guide plates is fixedly connected to the right side of the outer shell, and the two parts of the guide plates are arranged crosswise and oppositely, and a plurality of evaporation tubes are also fixedly installed between the two partitions, and the evaporation tubes pass through the guide plates, and the lower part of each guide plate is provided with a mounting rod for support and installation, and the mounting rod is fixed to the lower part of the guide plate by screws, and the upper and lower parts of the closed chamber formed between the two partitions and the outer shell are respectively provided with a hot air inlet and a hot air outlet.

[0006] Preferably, an outwardly protruding expansion joint is provided in the middle of the sealed chamber formed between the two partitions and the outer shell.

[0007] Preferably, the upper and lower parts of the closed chamber formed between the two partitions and the outer shell are respectively connected to an air outlet and an L-shaped liquid outlet, and the L-shaped liquid outlet is connected to the partition at the bottom of the outer shell.

[0008] Preferably, an inspection port is provided on the upper right side of the outer shell.

[0009] Preferably, the outer shell is made of Q345R alloy steel plate, the partitions and guide plates are all made of 316L stainless steel plate, and the evaporation tube is made of 316L stainless steel tube.

[0010] Beneficial effects: the liquid outlet, the gas outlet, the L-shaped liquid outlet and the inspection port are sealed, and then the toxic liquid of various mixtures of chemical raw materials in leather production is placed inside the raw material port, and then heated gas is introduced into the hot gas inlet. At this time, the acidic toxic liquid mixture at the lower part of the outer shell is heated by the hot gas from the hot gas inlet, and the liquid with the toxic part in the acidic toxic liquid mixture will be vaporized first due to its lower boiling point, forming a vapor-liquid mixture. Since the density of the vapor-liquid mixture is lower than the density of the pure liquid, an upward buoyancy is generated to transport the toxic gas upward from the evaporation tube and then separated out from the exhaust port. At the same time, the liquid at the bottom of the outer shell is continuously replenished into the outer shell due to its high density, thereby realizing automatic deacidification of the material and separation and removal of harmful materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0012] Figure 1 The reference numerals are: outer shell 1, exhaust port 101, raw material port 102, expansion joint 103, liquid outlet 104, sensor 105, inspection port 2, partition 3, hot gas inlet 301, hot gas outlet 302, guide plate 303, mounting rod 304, evaporation tube 4, L-shaped liquid outlet 5, gas outlet 501. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0014] Reference Figure 1 The deacidification tower reboiler includes an outer shell 1, which is cylindrical. The upper and lower parts of the outer shell 1 are respectively connected to a sensor 105 and a liquid outlet 104. The sensor 105 uses existing gas detection equipment to detect the content of toxic gases. An exhaust port 101 is provided on the right side of the upper part of the outer shell 1, and a raw material port 102 is provided on the right side of the lower part of the outer shell 1. Two partitions 3 are fixedly installed on the inner wall in the middle of the outer shell 1, and a closed chamber is formed between the two partitions 3 and the inner wall in the middle of the outer shell 1.

[0015] Preferably: a plurality of guide plates 303 are installed inside the closed chamber formed between the two partitions 3 and the outer shell 1, the length of the guide plates 303 is less than the diameter of the outer shell 1, and one part of the guide plates 303 is fixedly connected to the left side of the outer shell 1, and the other part of the guide plates 303 is fixedly connected to the right side of the outer shell 1, and the two parts of the guide plates 303 are arranged in pairs and crosswise. A plurality of evaporation tubes 4 are also fixedly installed between the two partitions 3, and the evaporation tubes (4) are connected to the raw material port 102 and the exhaust port 101. The evaporation tubes 4 The guide plate 303 is penetrated, and the lower part of each guide plate 303 is provided with a mounting rod 304 for support and installation. The mounting rod 304 is fixed to the lower part of the guide plate 303 by screws. The upper and lower parts of the closed chamber formed between the two partitions 3 and the outer shell 1 are respectively provided with a hot air inlet 301 and a hot air outlet 302. The liquid outlet 104, the air outlet 501, the L-shaped liquid outlet 5, and the inspection port 2 are sealed. After that, the toxic liquid of various mixtures of chemical raw materials in leather production is placed in the raw material port 10 2, heated gas is then introduced into the hot gas inlet 301. At this time, the gas will first contact the guide plate 303. Since the guide plate 303 is composed of two parts, one mounted on the right side of the outer shell 1 and the other mounted on the left side of the outer shell 1, the gas moves in an S-shaped manner within the multiple guide plates 303, thereby achieving uniform heating of the hot gas when it contacts the evaporation tube 4. The hot gas then slowly flows into the hot gas outlet 302. At this time, after the acidic and toxic liquid mixture at the bottom of the outer shell 1 is heated by the hot gas from the hot gas inlet 301, the toxic liquid in the acidic and toxic liquid mixture will be vaporized first due to its lower boiling point, forming a vapor-liquid mixture. Since the density of the vapor-liquid mixture is lower than that of the pure liquid, it generates an upward buoyancy, thereby transporting the toxic gas upward from the evaporation tube 4 and then separating it out through the exhaust port 101. At the same time, the liquid at the bottom of the outer shell is continuously replenished due to its higher density, thereby achieving automatic deacidification of the material and separation and removal of harmful materials.

[0016] Preferably, an outwardly protruding expansion joint 103 is provided in the middle of the closed chamber formed between the two partitions 3 and the outer shell 1. When hot air enters the inner part of the outer shell 1, the pressure on the inner wall of the middle part of the outer shell 1 will be relatively high due to the influence of thermal expansion, and the expansion joint can reduce the pressure on the inner wall of the middle part of the outer shell 1.

[0017] Preferably, the upper and lower parts of the closed chamber formed between the two partitions 3 and the outer shell 1 are respectively connected to the air outlet 501 and the L-shaped liquid outlet 5, and the L-shaped liquid outlet 5 is connected to the partition 3 at the bottom of the outer shell 1. By providing the L-shaped liquid outlet (5), the condensed water generated when the hot air contacts the outer wall of the cold evaporation tube 4 and the interior of the outer shell 1 can be discharged, thereby greatly extending the service life.

[0018] Preferably, an inspection port 2 is provided on the upper right side of the outer shell 1. When the evaporating tube 4 needs to be repaired, it can be repaired and inspected through the inspection port 2. The sensor 105 can sense the toxic gas content inside the outer shell 1 to ensure that people do not inhale excessive toxic gases during maintenance.

[0019] Preferably, the outer shell 1 is made of Q345R alloy steel plate, the partition 3 and the guide plate 303 are all made of 316L stainless steel plate, and the evaporation tube 4 is made of 316L stainless steel tube.

[0020] Working principle:

[0021] When in use, the liquid outlet 104, the gas outlet 501, the L-shaped liquid outlet 5, and the inspection port 2 are sealed, and then the toxic liquid of various mixtures of chemical raw materials in leather production are placed inside the raw material port 102, and then heated gas is introduced into the hot gas inlet 301. At this time, the gas will first contact the guide plate 303. Since the guide plate 303 is divided into two parts, one part is installed on the right side of the outer shell 1 and the other part is installed on the left side of the outer shell 1, this makes the gas move in an S shape in the multiple guide plates 303, so that when the hot gas contacts the evaporation tube 4, it is evenly heated, and then the hot gas will slowly flow into In the hot gas outlet 302, the acidic and toxic liquid mixture at the bottom of the outer shell 1 is heated by the hot gas from the hot gas inlet 301. The liquid with the toxic part in the acidic and toxic liquid mixture will be vaporized first due to its lower boiling point, forming a vapor-liquid mixture. Since the density of the vapor-liquid mixture is lower than the density of the pure liquid, an upward buoyancy is generated, thereby transporting the toxic gas upward from the evaporation tube 4 and then separating it from the exhaust port 101. At the same time, the liquid at the bottom of the outer shell is continuously replenished into the outer shell due to its higher density, thereby realizing automatic deacidification of the material and separation and removal of harmful materials.

[0022] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deacidification tower reboiler, comprising an outer shell (1), the outer shell (1) being cylindrical, the upper and lower parts of the outer shell (1) being connected to a sensor (105) and a liquid outlet (104), respectively, an exhaust port (101) being provided on the right side of the upper part of the outer shell (1), and a raw material port (102) being provided on the right side of the lower part of the outer shell (1), characterized in that: Two partitions (3) are fixedly mounted on the inner wall of the middle portion of the outer shell (1), and a closed chamber is formed between the two partitions (3) and the inner wall of the middle portion of the outer shell (1).

2. The deacidification tower reboiler according to claim 1, characterized in that A plurality of guide plates (303) are installed inside the closed chamber formed between the two partitions (3) and the outer shell (1). The length of the guide plates (303) is less than the diameter of the outer shell (1), and one part of the guide plates (303) is fixedly connected to the left side of the outer shell (1), and the other part of the guide plates (303) is fixedly connected to the right side of the outer shell (1). The two parts of the guide plates (303) are arranged in pairs and crosswise. A plurality of evaporation tubes (4) are also fixedly installed between the two partitions (3), and the evaporation tubes (4) pass through the guide plates (303).

3. The deacidification tower reboiler according to claim 2, characterized in that The lower portion of each guide plate (303) is provided with a mounting rod (304) for support and installation, and the mounting rod (304) is fixed to the lower portion of the guide plate (303) by screws.

4. The deacidification tower reboiler according to claim 3, characterized in that The upper and lower parts of the sealed chamber formed between the two partitions (3) and the outer shell (1) are respectively provided with a hot air inlet (301) and a hot air outlet (302).

5. The deacidification tower reboiler according to claim 4, characterized in that An outwardly protruding expansion joint (103) is also provided in the middle of the sealed chamber formed between the two partitions (3) and the outer shell (1).

6. The deacidification tower reboiler according to claim 5, characterized in that The upper and lower parts of the sealed chamber formed between the two partitions (3) and the outer shell (1) are respectively connected to an air outlet (501) and an L-shaped liquid outlet (5), and the L-shaped liquid outlet (5) is connected to the partition (3) at the bottom of the outer shell (1).

7. The deacidification tower reboiler according to claim 6, characterized in that An inspection opening (2) is also provided on the upper right side of the outer shell (1).

8. The deacidification tower reboiler according to claim 7, characterized in that The outer shell (1) is made of Q345R alloy steel plate, the partition (3) and the guide plate (303) are all made of 316L stainless steel plate, and the evaporation tube (4) is made of 316L stainless steel tube.

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