Acid regeneration condenser

Abstract

The acid regeneration condenser comprises a first shell, a second shell, a third shell, U-shaped condensation pipes and a single-arch-shaped baffle plate, the first shell, the second shell and the third shell are sequentially connected to form a pipe shape with one open end and one closed end, one end of the first shell is closed, and the U-shaped condensation pipes parallel to one another are arranged in the first shell side by side; the device further comprises a single-arch-shaped baffle plate; a circular partition plate is vertically arranged at the joint of the first shell and the second shell, the two ends of each U-shaped condensation pipe are fixed to the circular partition plate, a semicircular partition plate is vertically arranged at the joint of the second shell and the third shell, and a transverse partition plate is arranged at the axis in the second shell. According to the waste gas treatment device for the roasting furnace, residual hydrochloric acid gas in the waste gas of the roasting furnace after being filtered and condensed is absorbed, and it is guaranteed that the discharged gas of the roasting furnace cannot pollute the atmosphere.

Description

Technical Field

[0001] The utility model relates to the technical field of acid regeneration, in particular to an acid regeneration condenser. Background Art

[0002] Hydrochloric acid is an important inorganic chemical product, widely used in dyes, organic synthesis, food processing, printing and dyeing bleaching, leather, metallurgy, steel and other industries. Hydrochloric acid is highly corrosive. If the waste liquid is not treated, it will not only be a waste of resources, but also have a serious impact on the environment. The method of treating waste acid is to add alkali to neutralize the waste acid to neutrality before discharging it. The main methods for treating waste acid are spray roasting, extraction and evaporation. Among them, spray roasting is a commonly used method in industrial treatment, but after the spray roasting method treats the waste acid, a certain amount of regenerated hydrochloric acid gas remains in the high-temperature acid waste gas discharged from the roasting furnace, which will cause pollution to the atmosphere. Therefore, it is necessary to treat the roasting furnace waste gas before discharging it. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an acid regeneration condenser in view of the above shortcomings.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An acid regeneration condenser comprises a first shell, a second shell, a third shell, a U-shaped condenser tube and a single arched baffle. The first shell, the second shell and the third shell are connected in sequence to form a tube with one end open and the other end closed. The first shell is closed at one end and has a plurality of mutually parallel U-shaped condenser tubes arranged side by side inside. The single arched baffle is also included, and the single arched baffle is used to fix the plurality of U-shaped condenser tubes and guide the flow of coolant. A circular partition is vertically arranged at the connection between the first shell and the second shell, and both ends of all U-shaped condenser tubes are fixed on the circular partition. A semicircular partition is vertically arranged at the connection between the second shell and the third shell. A transverse partition is arranged at the internal axis of the second shell. The transverse partition, circular partition and semicircular partition form a closed cavity above the transverse partition, the parts of the second shell and the third shell located below the transverse partition are connected, the upper input end of the U-shaped condenser is connected to the closed cavity in the second shell, and the lower output end of the U-shaped condenser is connected to the part of the second shell located below the transverse partition. The first shell is provided with a coolant input port and a coolant output port, the top of the second shell is provided with a roasting furnace exhaust gas inlet located above the transverse partition, the top of the third shell is provided with a roasting furnace exhaust gas outlet, the bottom of the third shell is provided with a condensate outlet, and the inside of the third shell is provided with a filter for filtering the roasting furnace exhaust gas after condensation.

[0006] Furthermore, the diameter of the upper input end of the U-shaped condenser located inside the first shell is expanded compared to the lower output end.

[0007] Furthermore, the coolant inlet and the coolant outlet are respectively located on the upper and lower sides of the first shell and are arranged diagonally, the coolant inlet is used to connect to an external coolant inlet pipe, and the coolant outlet is used to connect to an external coolant outlet pipe.

[0008] Furthermore, the input end and the output end of the U-shaped condenser are both located on the inner side of the second shell, and the input end and the output end of the U-shaped condenser are respectively located on the upper and lower sides of the partition.

[0009] Furthermore, a filter is arranged above the condensate outlet in the third shell, and polystyrene resin particles are filled in the filter.

[0010] Furthermore, a liquid collecting tank is provided at the bottom of the inner cavity of the second shell for guiding the condensate flowing out of the outlet end of the U-shaped condenser tube to flow to the condensate outlet.

[0011] Furthermore, an inspection port is arranged on the outside of the third shell, and the cover on the outside of the inspection port can be opened to replace the polystyrene resin particles inside the filter.

[0012] Compared with the prior art, the utility model has the following advantages after adopting the above technical solution:

[0013] The utility model can condense most of the hydrochloric acid gas in the exhaust gas of the roasting furnace through the U-shaped condenser tube, and then set a filter to absorb the hydrochloric acid gas remaining in the exhaust gas of the roasting furnace after filtering and condensation, so as to ensure that the discharged exhaust gas of the roasting furnace will not pollute the atmosphere; by setting the U-shaped condenser tube, the expansion of the tube diameter of the front half of the U-shaped condenser tube makes the exhaust gas of the roasting furnace expand and release heat after entering the U-shaped condenser tube, thereby further accelerating the condensation process; by setting the collecting tank at the bottom of the inner cavity of the second shell, the condensate can be smoothly collected and flow to the condensate outlet of the third shell, thereby ensuring the collection efficiency of the condensate.

[0014] The utility model is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the internal structure of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the connection structure of the circular partition, the baffle and the U-shaped condenser tube;

[0018] Figure 4It is a three-dimensional structural diagram of the second shell and the third shell.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. First shell; 101. Coolant input port; 102. Coolant output port; 2. Second shell; 201. Roasting furnace exhaust gas inlet; 3. Third shell; 301. Roasting furnace exhaust gas outlet; 302. Condensate outlet; 303. Inspection port; 4. U-shaped condenser; 5. Single bow baffle; 6. Horizontal partition; 7. Circular partition; 8. Semicircular partition; 9. Filter; 10. Liquid collecting tank. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] like Figure 1-4As shown, an acid regeneration condenser comprises a first shell 1, a second shell 2, a third shell 3, a U-shaped condenser tube 4 and a single arched baffle 5. The first shell 1, the second shell 2 and the third shell 3 are connected in sequence to form a tube with one end open and the other end closed. The first shell 1 is closed at one end and has a plurality of mutually parallel U-shaped condenser tubes 4 arranged side by side inside. It also comprises a single arched baffle 5, and the single arched baffle 5 is used to fix the plurality of U-shaped condenser tubes 4 and guide the flow direction of the coolant; a circular partition 6 is vertically arranged at the connection between the first shell 1 and the second shell 2, and both ends of all the U-shaped condenser tubes 4 are fixed on the circular partition 6; a semicircular partition 7 is vertically arranged at the connection between the second shell 2 and the third shell 3; a transverse partition 8 is arranged at the internal axis of the second shell 2, and the transverse partition The plate 8, the circular partition 6 and the semicircular partition 7 form a closed cavity above the transverse partition 8, the parts of the second shell 2 and the third shell 3 located below the transverse partition 8 are connected, the upper input end of the U-shaped condenser 4 is connected to the closed cavity in the second shell 2, and the lower output end of the U-shaped condenser 4 is connected to the part of the second shell 2 located below the transverse partition 8. The first shell 1 is provided with a coolant input port 101 and a coolant output port 102, the top of the second shell 2 is provided with a roasting furnace exhaust gas inlet 201 located above the transverse partition 8, the top of the third shell 3 is provided with a roasting furnace exhaust gas outlet 301, the bottom of the third shell 3 is provided with a condensate outlet 302, and the inside of the third shell 3 is provided with a filter 9 for filtering the roasting furnace exhaust gas after condensation.

[0024] As an implementation mode, the diameter of the upper input end of the U-shaped condenser tube 4 located inside the first shell 1 is expanded compared to the lower output end.

[0025] As an implementation mode, the coolant inlet 101 and the coolant outlet 102 are respectively located at the upper and lower sides of the first shell 1 and are arranged diagonally. The coolant inlet 101 is used to connect an external coolant inlet pipe, and the coolant outlet 102 is used to connect an external coolant outlet pipe.

[0026] As an implementation mode, the input end and the output end of the U-shaped condenser tube 4 are both located inside the second shell 2 , and the input end and the output end of the U-shaped condenser tube 4 are respectively located on the upper and lower sides of the partition.

[0027] As an implementation manner, a filter 9 is disposed above the condensate outlet 302 in the third shell 3 , and the filter 9 is filled with polystyrene resin particles.

[0028] As an embodiment, a liquid collecting tank 10 is provided at the bottom of the inner cavity of the second shell 2 for guiding the condensate flowing out of the outlet end of the U-shaped condenser tube 4 to flow to the condensate outlet 302 .

[0029] As an implementation manner, an inspection port 303 is provided on the outer side of the third shell 3 , and the cover on the outer side of the inspection port 303 can be opened to replace the polystyrene resin particles inside the filter 9 .

[0030] The working process of the utility model is as follows: the roasting furnace exhaust gas enters the second shell 2 through the roasting furnace exhaust gas inlet 201, and enters the U-shaped condenser 4 inside the second shell 2. When the exhaust gas flows through multiple U-shaped condenser tubes 4, due to the expansion design of the diameter of the front half of the U-shaped condenser tube 4, the exhaust gas volume expands and releases heat, thereby accelerating the condensation process. At the same time, the coolant enters the first shell 1 through the coolant input port 101 on the first shell 1, flows through the U-shaped condenser tube 4 and multiple single-bow baffles 5, and is discharged from the coolant output port 102. The coolant is circulated and transported to the inside of the first shell by an external delivery pump; the condensed liquid flows down along the condenser tube under the action of gravity, and enters the second shell 2 from the output end of the U-shaped condenser tube 4, and flows from the collecting tank 10 to the condensate outlet 302 of the third shell 3; the condensed roasting furnace exhaust gas enters the third shell 3 and passes through the filter 9 to absorb the residual hydrochloric acid and is discharged from the roasting furnace exhaust gas outlet 301 at the top of the third shell 3; as the use time increases, the polystyrene resin particles inside the filter 9 may reduce the filtering effect due to the absorption of too many impurities. At this time, the filter 9 can be inspected and replaced through the inspection port 303 on the outside of the third shell 3 to ensure the long-term stable operation of the condenser.

[0031] The above is an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model is based on the content of the claims, and any equivalent transformation based on the technical inspiration of the utility model is also within the protection scope of the utility model.

Claims

1. An acid regeneration condenser, characterized in that: The invention comprises a first shell (1), a second shell (2), a third shell (3), a U-shaped condenser tube (4) and a single-bow baffle (5); the first shell (1), the second shell (2) and the third shell (3) are connected in sequence to form a tube with one end open and the other end closed; the first shell (1) is closed at one end and has a plurality of U-shaped condenser tubes (4) arranged side by side in parallel therein; the single-bow baffle (5) is used to fix the plurality of U-shaped condenser tubes (4) and guide the flow of cooling liquid; a circular partition (6) is vertically arranged at the connection between the first shell (1) and the second shell (2); both ends of all the U-shaped condenser tubes (4) are fixed on the circular partition (6); a semicircular partition (7) is vertically arranged at the connection between the second shell (2) and the third shell (3); a transverse partition (8) is arranged at the internal axis of the second shell (2); the transverse partition (8), the circular baffle (6) and the semicircular baffle (7) are vertically arranged at the connection between the second shell (2) and the third shell (3); The partition (6) and the semicircular partition (7) form a closed cavity above the transverse partition (8); the second shell (2) and the third shell (3) are connected at the parts below the transverse partition (8); the upper input end of the U-shaped condenser (4) is connected to the closed cavity in the second shell (2); the lower output end of the U-shaped condenser (4) is connected to the part of the second shell (2) below the transverse partition (8); the first shell (1) is provided with a coolant input port (101) and a coolant output port (102); the top of the second shell (2) is provided with a roasting furnace waste gas inlet (201) located above the transverse partition (8); the top of the third shell (3) is provided with a roasting furnace waste gas outlet (301); the bottom of the third shell (3) is provided with a condensate outlet (302); and the inside of the third shell (3) is provided with a filter (9) for filtering the roasting furnace waste gas after condensation.

2. An acid regeneration condenser according to claim 1, characterized in that: The diameter of the upper input end of the U-shaped condenser tube (4) located inside the first shell (1) is expanded compared to the lower output end.

3. The acid regeneration condenser according to claim 1, characterized in that: The coolant input port (101) and the coolant output port (102) are respectively located on the upper and lower sides of the first shell (1) and are arranged diagonally; the coolant input port (101) is used to connect to an external coolant input pipe, and the coolant output port (102) is used to connect to an external coolant output pipe.

4. The acid regeneration condenser according to claim 1, characterized in that: The input end and the output end of the U-shaped condenser tube (4) are both located inside the second shell (2), and the input end and the output end of the U-shaped condenser tube (4) are respectively located on the upper and lower sides of the partition.

5. The acid regeneration condenser according to claim 1, characterized in that: A filter (9) is arranged in the third shell (3) above the condensate outlet (302), and the interior of the filter (9) is filled with polystyrene resin particles.

6. The acid regeneration condenser according to claim 1, characterized in that: A liquid collecting tank (10) is provided at the bottom of the inner cavity of the second shell (2) for guiding the condensate flowing out of the outlet end of the U-shaped condenser tube (4) to flow toward the condensate outlet (302).

7. The acid regeneration condenser according to claim 1, characterized in that: The third shell (3) is provided with an inspection port (303) on the outside. The cover on the outside of the inspection port (303) can be opened to replace the polystyrene resin particles inside the filter (9).

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