Supercharging hot steam circulating device for industrial waste acid

Abstract

The utility model discloses an industrial waste acid pressurizing hot steam circulating device which comprises an acid steaming tank body, a lower hot steaming assembly is arranged on the lower side of the interior of the acid steaming tank body, and an upper hot steaming assembly is arranged on the upper side of the interior of the acid steaming tank body. The steam booster pump can pressurize the conveyed hot steam, so that the hot steam entering the connecting pipe reaches the required high temperature and pressure, and then part of the hot steam enters the lower heat conduction pipe through the connecting pipe and the lower steam inlet branch pipe in sequence to heat the lower heat conduction pipe; the other part of hot steam sequentially passes through a first steam valve, an upper steam inlet branch pipe and an upper steam inlet header pipe to enter an upper heat conduction pipe to heat the upper heat conduction pipe, so that the upper heat conduction pipe, an upper heat conduction sheet, a lower heat conduction pipe and a lower heat conduction sheet heat surrounding industrial waste acid; therefore, the heating and concentrating efficiency of the industrial waste acid in the acid steaming tank body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial waste acid concentration technical field, concretely is a kind of industrial waste acid pressurized hot steam circulating device. BACKGROUND

[0002] Waste acid, also known as waste sulfuric acid, is generated in the processes of nitration, esterification, sulfonation, alkylation, catalysis and gas drying of organic matter, or in the processes of titanium dioxide production, steel pickling and gas drying. In the process of waste acid recovery and treatment, industrial waste acid is usually concentrated and recovered with an acid steaming tank.

[0003] In the prior art, a waste acid concentration and precipitation tank with publication number "CN214436527U" has a first steam pipe located above a second steam pipe, a first support rod provided between the first steam pipe and the second steam pipe, and a second support rod provided between the second steam pipe and the precipitation tank body. The first support rod is used to support the first steam pipe, and the second support rod is used to support the second steam pipe, so that the first steam pipe and the second steam pipe are not suspended, preventing the steam pipes from deforming after long-term use and prolonging the service life.

[0004] However, the above technical solution and the prior art have the following defects:

[0005] Although the waste acid concentration and precipitation tank can heat and concentrate waste acid, the interior of the precipitation tank body is not provided with a corresponding heat conduction structure, which prevents the hot steam from directly heating and concentrating the waste acid through the interior of the precipitation tank body. Therefore, the heating and concentrating efficiency of the waste acid is relatively low during use. Most waste acid concentration tanks in the prior art use a single set of steam guide structure to heat and concentrate the waste acid inside the tank body, which cannot simultaneously heat and concentrate the upper and lower parts of the waste acid inside the tank body, and the heating and concentrating efficiency needs to be further improved. SUMMARY

[0006] The utility model aims to provide a kind of industrial waste acid pressurized hot steam circulating device to solve the problems raised in the above background.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] The utility model provides an industrial waste acid pressurized hot steam circulating device, including acid tank body, sealing tank cover, support base and acid supplement valve, the upper end surface of acid tank body is installed with sealing tank cover, the bottom fixed connection of acid tank body has support base, the upper side of left end surface of acid tank body is connected with acid supplement valve, the inside lower side of acid tank body is provided with lower heat steam subassembly, and lower heat steam subassembly is used for heating the industrial waste acid of inside lower side of acid tank body, the inside upper side of acid tank body is provided with upper heat steam subassembly, and upper heat steam subassembly is used for heating the industrial waste acid of inside upper side of acid tank body.

[0009] Preferably, the lower heat steam subassembly includes a lower steam outlet branch pipe, a lower steam outlet main pipe, a lower heat conduction pipe, a lower steam inlet main pipe, a lower steam inlet branch pipe, a connecting pipe, a steam booster pump, and a steam generator. The lower heat conduction pipe is fixedly connected to the inside lower side of the acid tank body. The lower steam outlet main pipe is fixedly connected to the left end of the lower heat conduction pipe. The lower steam outlet branch pipe is fixedly connected to the left side of the annular side of the lower steam outlet main pipe. The lower steam inlet main pipe is fixedly connected to the right end of the lower heat conduction pipe. The lower steam inlet branch pipe is fixedly connected to the right side of the annular side of the lower steam inlet main pipe. The connecting pipe is fixedly connected to the right side of the annular side of the lower steam inlet branch pipe. The steam booster pump is installed at the inlet end of the connecting pipe. The steam generator is installed at the lower end of the steam booster pump.

[0010] Preferably, the upper heat steam subassembly includes an upper steam inlet branch pipe, an upper steam inlet main pipe, an upper heat conduction pipe, an upper steam outlet main pipe, and an upper steam outlet branch pipe. The upper heat conduction pipe is fixedly connected to the inside upper side of the acid tank body. The upper steam inlet main pipe is fixedly connected to the right end of the upper heat conduction pipe. The upper steam inlet branch pipe is fixedly connected to the right side of the annular side of the upper steam inlet main pipe. The upper steam outlet main pipe is fixedly connected to the left end of the upper heat conduction pipe. The upper steam outlet branch pipe is fixedly connected to the left side of the annular side of the upper steam outlet main pipe.

[0011] Preferably, the upper heat conduction pipe is fixedly connected to a plurality of upper heat conduction fins on the annular side. The upper steam inlet main pipe is in communication with the upper heat conduction pipe and the upper steam inlet branch pipe, respectively. The upper steam outlet main pipe is in communication with the upper heat conduction pipe and the upper steam outlet branch pipe, respectively.

[0012] Preferably, the lower steam inlet branch pipe is connected to a first steam valve at the lower end. The upper steam outlet branch pipe is connected to a second steam valve at the lower end.

[0013] Preferably, the lower heat conduction pipe is fixedly connected to a plurality of lower heat conduction fins on the annular side. The lower steam outlet branch pipe is fixedly connected to an exhaust pipe at the outlet end.

[0014] Preferably, the sealing tank cover is connected to a gas exhaust pipe at the upper end. The acid tank body is provided with an observation window on the front side of the annular side. The acid tank body is installed with a discharge valve at the bottom.

[0015] Compared with the prior art, the utility model has the advantages of

[0016] 1. By starting steam generator and steam booster pump, can make steam generator to steam booster pump inside delivery hot steam, and the working steam booster pump will carry on the pressurization to the hot steam that carries over, makes the hot steam that enters the inside of the connecting pipe to reach the required high temperature and pressure, then a part of hot steam will enter the lower heat conduction pipe in turn through the connecting pipe and the lower steam inlet branch pipe and heat the lower heat conduction pipe and the lower heat conduction sheet is heated after being heated and the industrial waste acid in the bottom of the tank body is heated and concentrated;

[0017] 2. After the first steam valve opens, a part of the hot steam in the lower steam inlet branch pipe will enter the upper heat conduction pipe in turn through the first steam valve, the upper steam inlet branch pipe and the upper steam inlet manifold to heat the upper heat conduction pipe, so that the upper heat conduction pipe and the upper heat conduction sheet heat and concentrate the industrial waste acid in the upper half of the tank body, to further improve the efficiency of heating and concentrating the industrial waste acid in the tank body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the main body structure schematic diagram of the utility model;

[0019] Figure 2 It is the structure diagram of the tank body in the utility model;

[0020] Figure 3 It is the front view sectional view of lower heat steam subassembly and upper heat steam subassembly in the utility model;

[0021] Figure 4 It is the partial structure diagram of lower heat steam subassembly and upper heat steam subassembly in the utility model;

[0022] Figure 5 It is the structure diagram of steam booster pump and steam generator in the utility model.

[0023] In the drawing: 1, the tank body of acid fuming;11, observation window;12, discharge valve;2, sealing tank cover;21, gas discharge pipe;3, support base;4, lower heat steam subassembly;41, exhaust pipe;42, lower steam outlet branch pipe;43, lower steam outlet manifold;44, lower heat conduction pipe;45, lower steam inlet manifold;46, lower steam inlet branch pipe;47, connecting pipe;48, lower heat conduction sheet;49, steam booster pump;411, steam generator;5, upper heat steam subassembly;51, first steam valve;52, upper steam inlet branch pipe;53, upper steam inlet manifold;54, upper heat conduction pipe;55, upper heat conduction sheet;56, upper steam outlet manifold;57, upper steam outlet branch pipe;58, second steam valve;6, acid supplement valve. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0025] Please refer to Figures 1-5 The present application provides a technical solution:

[0026] Embodiment one:

[0027] The industrial waste acid pressurized hot steam circulating device comprises a steam acid tank body 1, a sealing tank cover 2, a supporting base 3 and an acid supplement valve 6, the steam acid tank body 1 is provided with the sealing tank cover 2 on the upper end face, the sealing tank cover 2 is a separately detachable structure, the separately detachable sealing tank cover 2 can not only block the opening at the top of the steam acid tank body 1, but also facilitate the cleaning and maintenance of the inside of the steam acid tank body 1 by the later working personnel, the steam acid tank body 1 is fixedly connected with the supporting base 3 at the bottom, the supporting base 3 can support and fix the steam acid tank body 1, the steam acid tank body 1 is connected with the acid supplement valve 6 on the upper side of the left end face, the acid supplement valve 6 is an acid and alkali resistant valve, the inlet end of the acid supplement valve 6 is connected with the outlet of an external industrial waste acid storage tank through a pipeline, the acid supplement valve 6 can introduce a proper amount of industrial waste water into the inside of the steam acid tank body 1 when opened, the steam acid tank body 1 is provided with an observation window 11 on the front side of the annular side face, the observation window 11 facilitates the real-time observation of the inside of the steam acid tank body 1 by the working personnel, and the steam acid tank body 1 is provided with a discharge valve 12 at the bottom, the discharge valve 12 is an acid and alkali resistant valve, the outlet end of the discharge valve 12 is connected with the inlet end of an external centrifugal machine through a pipeline, and the discharge valve 12 can discharge the waste acid evaporated and concentrated in the inside of the steam acid tank body 1 and obtain the crystal of ferrous chloride through centrifugal separation of the external centrifugal machine when opened.

[0028] The upper end face of the sealing tank cover 2 is connected with a gas discharge pipe 21 at the middle position, the gas discharge pipe 21 is connected with the inlet of an external tube bundle type condenser through a pipeline, and the gas discharge pipe 21 can introduce the gas heated and evaporated in the inside of the steam acid tank body 1 into the external tube bundle type condenser, so that the evaporated gas is condensed into dilute hydrochloric acid and returned to the acid pickling workshop for recycling.

[0029] A lower hot steam assembly 4 is arranged at the lower side in the inside of the steam acid tank body 1, and the lower hot steam assembly 4 is used for heating the industrial waste acid at the lower side in the inside of the steam acid tank body 1, an upper hot steam assembly 5 is arranged at the upper side in the inside of the steam acid tank body 1, and the upper hot steam assembly 5 is used for heating the industrial waste acid at the upper side in the inside of the steam acid tank body 1, so as to improve the heating and concentration efficiency of the steam acid tank body 1 on the industrial waste acid.

[0030] The lower heat steaming assembly 4 comprises a lower steam outlet branch pipe 42, a lower steam outlet manifold 43, a lower heat conducting pipe 44, a lower steam inlet manifold 45, a lower steam inlet branch pipe 46, a connecting pipe 47, a steam booster pump 49 and a steam generator 411. The lower heat conducting pipe 44 is fixedly connected to the lower side of the inside of the acid tank body 1. The lower heat conducting pipe 44 is connected to the acid tank body 1, the lower steam inlet manifold 45 and the lower steam outlet manifold 43 by welding. The lower heat conducting pipe 44 facilitates the hot steam to enter the lower side of the inside of the acid tank body 1 to heat and concentrate the surrounding industrial waste acid. The left end of the lower heat conducting pipe 44 is fixedly connected to the lower steam outlet manifold 43. The lower steam outlet manifold 43 can guide the hot steam in the lower heat conducting pipe 44 into the lower steam outlet branch pipe 42. The left side of the annular side of the lower steam outlet manifold 43 is fixedly connected to the lower steam outlet branch pipe 42. The lower steam outlet branch pipe 42 can guide the hot steam into the steam exhaust pipe 41.

[0031] The right end of the lower heat conducting pipe 44 is fixedly connected to the lower steam inlet manifold 45. The lower steam inlet manifold 45 can guide the lower steam inlet branch pipe 46 into the two groups of lower heat conducting pipes 44. The right side of the annular side of the lower steam inlet manifold 45 is fixedly connected to the lower steam inlet branch pipe 46. The lower steam inlet branch pipe 46 can guide the hot steam into the lower steam inlet manifold 45. The right side of the annular side of the lower steam inlet branch pipe 46 is fixedly connected to the connecting pipe 47. The connecting pipe 47 can guide the hot steam discharged by the steam booster pump 49 into the lower steam inlet branch pipe 46. The steam booster pump 49 is installed at the inlet end of the connecting pipe 47. The inlet end of the steam booster pump 49 is in communication with the steam outlet end of the steam generator 411. The steam booster pump 49 can boost the hot steam discharged by the steam generator 411 when working, so that the hot steam entering the connecting pipe 47 reaches a higher temperature and pressure, thereby improving the heating efficiency of the lower heat steaming assembly 4 and the upper heat steaming assembly 5. The steam generator 411 is installed at the lower end of the steam booster pump 49. The steam generator 411 can discharge hot steam when working. Since the internal detailed structure and working principle of the steam generator 411 and the steam booster pump 49 both belong to relatively mature technologies in the prior art, they will not be described in detail here.

[0032] The annular side of the lower heat conducting pipe 44 is fixedly connected to a plurality of lower heat conducting fins 48. The plurality of lower heat conducting fins 48 can further improve the heating range of the lower heat conducting pipe 44. The outlet end of the lower steam outlet branch pipe 42 is fixedly connected to the steam exhaust pipe 41. The steam exhaust pipe 41 is in communication with the inlet of an external steam recovery machine through a pipeline. The steam exhaust pipe 41 can guide the used steam into the inside of the external steam recovery machine for recovery.

[0033] Example two:

[0034] On the basis of embodiment one, in this embodiment, after the first steam valve 51 is opened, a part of the hot steam inside the lower steam inlet branch pipe 46 will enter the upper heat conducting pipe 54 through the first steam valve 51, the upper steam inlet branch pipe 52 and the upper steam inlet main pipe 53 in turn to heat it, so that the upper heat conducting pipe 54 and the upper heat conducting fin 55 heat and concentrate the industrial waste acid on the upper half of the industrial acid tank body 1, thereby further improving the efficiency of heating and concentrating the industrial waste acid inside the industrial acid tank body 1.

[0035] The upper heat steam assembly 5 includes the upper steam inlet branch pipe 52, the upper steam inlet main pipe 53, the upper heat conducting pipe 54, the upper steam outlet main pipe 56 and the upper steam outlet branch pipe 57, the upper heat conducting pipe 54 is fixedly connected to the inside upper side of the industrial acid tank body 1, and the upper heat conducting pipe 54 is connected to the industrial acid tank body 1, the upper steam inlet main pipe 53 and the upper steam outlet main pipe 56 by welding, which facilitates the hot steam entering the inside upper side of the industrial acid tank body 1 to heat and concentrate the surrounding industrial waste acid, the right end of the upper heat conducting pipe 54 is fixedly connected to the upper steam inlet main pipe 53, and the upper steam inlet main pipe 53 is connected to the upper heat conducting pipe 54 and the upper steam inlet branch pipe 52, so that the upper steam inlet main pipe 53 can guide the hot steam inside the upper steam inlet branch pipe 52 into the upper heat conducting pipe 54.

[0036] The right side of the annular side of the upper steam inlet main pipe 53 is fixedly connected to the upper steam inlet branch pipe 52, which can guide a part of the hot steam inside the lower steam inlet branch pipe 46 into the upper steam inlet main pipe 53, the left end of the upper heat conducting pipe 54 is fixedly connected to the upper steam outlet main pipe 56, and the upper steam outlet main pipe 56 is connected to the upper heat conducting pipe 54 and the upper steam outlet branch pipe 57, so that the upper steam outlet main pipe 56 can guide the hot steam inside the upper heat conducting pipe 54 into the upper steam outlet branch pipe 57, the left side of the annular side of the upper steam outlet main pipe 56 is fixedly connected to the upper steam outlet branch pipe 57, which can guide the hot steam inside the upper steam outlet main pipe 56 into the lower steam outlet branch pipe 42, and the annular side of the upper heat conducting pipe 54 is fixedly connected to a plurality of upper heat conducting fins 55, which can further improve the heating range of the lower heat conducting pipe 44, the lower end of the upper steam inlet branch pipe 52 is connected to the first steam valve 51, which facilitates the staff to control the on-off of the upper steam inlet branch pipe 52, and the lower end of the upper steam outlet branch pipe 57 is connected to the second steam valve 58, which facilitates the staff to control the on-off of the upper steam outlet branch pipe 57.

[0037] Working principle: The staff first opens the acid supplement valve 6 to supplement the required amount of industrial waste acid into the inside of the industrial acid tank body 1, and in this process, the liquid level of the industrial waste acid entering the inside of the industrial acid tank body 1 cannot exceed the highest liquid level line ( Figure 2When the staff sees the industrial waste acid liquid level in the acid tank 1 is lower than the upper heat conduction piece 55 through the observation window 11, the first steam valve 51 and the second steam valve 58 can be closed respectively, so that a part of the hot steam continues to enter the upper heat conduction pipe 54, so that the hot steam can be concentrated into the lower heat conduction pipe 44 to heat it, so that the lower heat conduction pipe 44 continues to heat and concentrate the industrial waste acid in the acid tank 1, when the industrial waste acid is heated and concentrated to the required state, the staff first closes the steam booster pump 49 and the steam generator 411 respectively, and then opens the discharge valve 12 to discharge the concentrated industrial waste acid in the acid tank 1 for further treatment.

[0038] When the staff sees the industrial waste acid liquid level in the acid tank 1 is lower than the upper heat conduction piece 55 through the observation window 11, the first steam valve 51 and the second steam valve 58 can be closed respectively, so that a part of the hot steam continues to enter the upper heat conduction pipe 54, so that the hot steam can be concentrated into the lower heat conduction pipe 44 to heat it, so that the lower heat conduction pipe 44 continues to heat and concentrate the industrial waste acid in the acid tank 1, when the industrial waste acid is heated and concentrated to the required state, the staff first closes the steam booster pump 49 and the steam generator 411 respectively, and then opens the discharge valve 12 to discharge the concentrated industrial waste acid in the acid tank 1 for further treatment.

[0039] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An industrial spent acid pressurized hot steam circulation device comprising an acid steaming tank body (1), a sealing tank cover (2), a supporting base (3) and an acid supplementing valve (6), characterized in that: The upper end face of the acid vaporizing tank body (1) is provided with a sealing tank cover (2), the bottom of the acid vaporizing tank body (1) is fixedly connected with a supporting base (3), and the left end face of the acid vaporizing tank body (1) is connected with an acid supplement valve (6) on the upper side. A lower heat vaporizing assembly (4) is arranged on the lower side of the acid vaporizing tank body (1), and is used for heating the industrial waste acid on the lower side of the acid vaporizing tank body (1); and an upper heat vaporizing assembly (5) is arranged on the upper side of the acid vaporizing tank body (1), and is used for heating the industrial waste acid on the upper side of the acid vaporizing tank body (1).

2. The industrial spent acid pressurized heat steam cycle device according to claim 1, characterized in that: The lower heat vaporizing assembly (4) comprises a lower steam outlet branch pipe (42), a lower steam outlet main pipe (43), a lower heat conducting pipe (44), a lower steam inlet main pipe (45), a lower steam inlet branch pipe (46), a connecting pipe (47), a steam booster pump (49) and a steam generator (411), the lower heat conducting pipe (44) is fixedly connected to the lower side of the acid vaporizing tank body (1), the lower steam outlet main pipe (43) is fixedly connected to the left end of the lower heat conducting pipe (44), the lower steam outlet branch pipe (42) is fixedly connected to the left side of the annular side of the lower steam outlet main pipe (43), the lower steam inlet main pipe (45) is fixedly connected to the right end of the lower heat conducting pipe (44), the lower steam inlet branch pipe (46) is fixedly connected to the right side of the annular side of the lower steam inlet main pipe (45), the connecting pipe (47) is fixedly connected to the right side of the annular side of the lower steam inlet branch pipe (46), the steam booster pump (49) is arranged at the inlet end of the connecting pipe (47), and the steam generator (411) is arranged at the lower end of the steam booster pump (49).

3. The industrial spent acid pressurized heat steam circulating device according to claim 1, characterized in that: The upper heat vaporizing assembly (5) comprises an upper steam inlet branch pipe (52), an upper steam inlet main pipe (53), an upper heat conducting pipe (54), an upper steam outlet main pipe (56) and an upper steam outlet branch pipe (57), the upper heat conducting pipe (54) is fixedly connected to the upper side of the acid vaporizing tank body (1), the upper steam inlet main pipe (53) is fixedly connected to the right end of the upper heat conducting pipe (54), the upper steam inlet branch pipe (52) is fixedly connected to the right side of the annular side of the upper steam inlet main pipe (53), the upper steam outlet main pipe (56) is fixedly connected to the left end of the upper heat conducting pipe (54), and the upper steam outlet branch pipe (57) is fixedly connected to the left side of the annular side of the upper steam outlet main pipe (56).

4. The industrial spent acid pressurized heat steam circulating device according to claim 3, characterized in that: A plurality of upper heat conducting fins (55) are fixedly connected to the annular side of the upper heat conducting pipe (54), the upper steam inlet main pipe (53) is in communication with the upper heat conducting pipe (54) and the upper steam inlet branch pipe (52) respectively, and the upper steam outlet main pipe (56) is in communication with the upper heat conducting pipe (54) and the upper steam outlet branch pipe (57) respectively.

5. The industrial spent acid pressurized heat steam circulating device according to claim 3, characterized in that: The first steam valve (51) is connected to the lower end of the upper steam inlet branch pipe (52), and the second steam valve (58) is connected to the lower end of the upper steam outlet branch pipe (57).

6. The industrial spent acid pressurized heat steam circulating device according to claim 2, characterized in that: A plurality of lower heat conducting fins (48) are fixedly connected to the annular side of the lower heat conducting pipe (44), and the exhaust pipe (41) is fixedly connected to the outlet end of the lower steam outlet branch pipe (42).

7. The industrial spent acid pressurized heat steam circulating device according to claim 1, characterized in that: The sealing tank cover (2) upper end surface middle position is connected with gas exhaust pipe (21), the steam acid tank body (1) annular side front side is provided with observation window (11), the steam acid tank body (1) bottom is equipped with discharge valve (12).

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