Zinc calcine tail gas dust removal device

Abstract

The utility model discloses a zinc calcine tail gas dust removal device, relates to the technical field of zinc calcine production and manufacturing, and aims to remove dust particles in zinc calcine tail gas. The device comprises an air inlet pipe, an air outlet pipe, a dust removal box and a supporting frame, the air inlet pipe is tightly connected to one side of the dust removal box in an inclined downward mode, the air outlet pipe is tightly connected to the other side of the dust removal box and extends out in an inclined upward mode, and a partition plate is further arranged in the dust removal box and located between the air inlet pipe and the air outlet pipe. The supporting frame is fixedly connected to the dust removal box and used for supporting the dust removal box. Due to the obliquely downward design of the gas inlet pipe, the tail gas has certain impact force when entering the dust removal box, large-particle dust is promoted to directly fall into the dust collection box due to the inertia effect, and therefore primary dust removal is achieved. As the upper part of the partition plate does not abut against the top of the dust collection box, airflow can pass above the partition plate, the air outlet pipe is obliquely arranged upwards, residual dust is further separated and falls into the dust collection box under the action of gravity, and the dust collection effect is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production and manufacturing technical field of zinc calcine, especially relates to a zinc calcine tail gas dust removal device. BACKGROUND

[0002] In the industrial production process of zinc calcine, tail gas emission is an unavoidable link. The tail gas composition is complex, and sulfides account for a large proportion, mainly including sulfur dioxide and sulfur trioxide. These two gases are often regarded as environmental pollution sources before treatment, but in fact, they have great potential value and provide an important raw material basis for subsequent chemical production.

[0003] Sulfuric acid, as the "universal raw material" in the industrial field, plays a core role in metallurgy, chemical industry, pharmaceutical industry and many other industries. Sulfur dioxide and sulfur trioxide in the tail gas can be efficiently converted into sulfuric acid through a series of chemical reactions. This process of extracting value from tail gas not only reduces production costs, but also meets the concept of green environmental protection and resource recycling. However, there is a problem in the process of converting tail gas into sulfuric acid, which is the dust particles mixed in the tail gas. In the sulfuric acid production process, dust can mix into the product, causing the purity of sulfuric acid to decrease and affecting its application effect in the manufacture of high-end chemical products. In the equipment end, dust adheres and accumulates for a long time, which can accelerate the wear and corrosion of the equipment, and frequent equipment maintenance and replacement greatly increase the operating costs of enterprises.

[0004] Therefore, the development of a device for removing dust particles in the tail gas generated in the industrial production process of zinc calcine has become a key breakthrough point for ensuring the quality of sulfuric acid, prolonging the service life of equipment and improving the economic benefits of enterprises. INVENTION CONTENTS

[0005] In view of the above shortcomings, the utility model provides a zinc calcine tail gas dust removal device which can effectively remove dust particles in zinc calcine tail gas. In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A zinc calcine tail gas dust removal device, comprising an air inlet pipe, an air outlet pipe, a dust removal box and a support frame, the air inlet pipe is connected to one side of the dust removal box obliquely downward, the air outlet pipe is connected to the other side of the dust removal box obliquely upward, a partition plate is arranged in the dust removal box and located between the air inlet pipe and the air outlet pipe, the upper part of the partition plate does not abut against the top of the dust removal box, and the support frame is fixedly connected to the dust removal box to support the dust removal box.

[0007] Preferably, the dust removal box comprises a dust blocking box and a dust collecting box, the dust collecting box is fixedly connected to the lower part of the dust blocking box, the partition plate is arranged in the dust blocking box, and the support frame is fixedly connected to the dust blocking box.

[0008] Preferably, the air inlet pipe and the air outlet pipe are arranged in a V shape, the air inlet pipe is connected to one side of the dust removal box in a downward and close manner, and the air outlet pipe is connected to the other side of the dust removal box in a close manner and extends upward.

[0009] Preferably, the safety ladder is fixed to the ground at the lower part and is fixed to the dust blocking box at the upper end.

[0010] Preferably, the dust blocking box is provided with an opening at the upper part, and the first box cover is connected to the upper part of the dust blocking box in a close manner.

[0011] Preferably, the dust collecting box is provided with an opening at the lower part, and the second box cover is rotatably connected to the lower part of the dust collecting box to close the opening of the dust collecting box.

[0012] Preferably, the first box cover is further provided with a handle, and the handle is fixed to the upper middle part of the first box cover.

[0013] Preferably, the second box cover is further provided with a hanging ring, the hanging ring is rotatably arranged on the other side of the rotating shaft of the second box cover, the lower part of the dust collecting box is provided with a hook matched with the hanging ring, and the hanging ring is hung on the hook to fix the second box cover.

[0014] Compared with the prior art, the device has the beneficial effects that: the device comprises an air inlet pipe, an air outlet pipe, a dust removal box and a support frame, the air inlet pipe is connected to one side of the dust removal box in a downward and close manner, the air outlet pipe is connected to the other side of the dust removal box in a close manner and extends upward, the dust removal box is further provided with a partition plate, the partition plate is arranged in the dust removal box and located between the air inlet pipe and the air outlet pipe, the upper part of the partition plate does not abut against the top of the dust removal box, and the support frame is fixed to the dust removal box to support the dust removal box. The device is designed in a downward and close manner, so that the tail gas has a certain impact force when entering the dust removal box, and the impact effect of the dust and the partition plate is enhanced. The partition plate blocks the dust and promotes the larger particles of the dust to directly fall into the dust collecting box due to the inertial effect, so that the preliminary dust removal is realized. Since the upper part of the partition plate does not abut against the top of the dust removal box, the airflow can pass above the partition plate, but at this time the flow rate of the gas is reduced, part of the smaller dust loses the suspension ability due to the flow rate change, and further sinks downward. The air outlet pipe is arranged in an upward and close manner, so that the tail gas experiences a rising process again before being discharged, the gravity is utilized to make the residual dust further separate and fall into the dust collecting box, and the dust removal effect is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description.

[0016] Figure 1 It is a whole structure schematic view of the present application;

[0017] Figure 2The utility model discloses a dust removal box main part's structural diagram shows,

[0018] Figure 3 The utility model discloses a dust removal box main part's structural diagram shows, Figure 2 The utility model discloses a dust removal box main part's structural diagram shows,

[0019] Figure 4 The utility model discloses a dust removal box main part's structural diagram shows, Figure 2 The utility model discloses a dust removal box main part's structural diagram shows,

[0020] 1, dust removal box;11, dust prevention box;111, first lid;112, handle;113, partition;12, dust collection box;121, second lid;122, hanging ring;123, hook;2, air inlet pipe;3, air outlet pipe;4, safety ladder;5, support frame;6, flange. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the scope of protection of the utility model.

[0022] In the description of the utility model, it needs to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation on the utility model. In addition, the terms "first", "second", "third" are only for the description purpose, and cannot be understood as indicating or implying the relative importance.

[0023] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, or detachable connection, or integrally connected;Can be mechanical connection, or electrical connection;Can be directly connected, or indirectly connected through the intermediate medium, or the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] The utility model provides a kind of zinc calcine tail gas dust removal device, to remove the dust particles in the tail gas generated in the industrial production process of zinc calcine, as shown in Figures 1-4 Device includes air inlet pipe 2, air outlet pipe 3, dust removal box 1 and support frame 5, air inlet pipe 2 is obliquely downwardly connected in dust removal box 1 one side, air outlet pipe 3 is connected in dust removal box 1 other side and obliquely upwardly extends, dust removal box 1 inside is further provided with baffle 113, baffle 113 is arranged in dust removal box 1 and is located between air inlet pipe 2 and air outlet pipe 3, baffle 113 upper portion does not abut with dust removal box 1 top, support frame 5 is fixedly connected on dust removal box 1 to support dust removal box 1.Dust removal box 1 includes dust blocking box 11 and dust collecting box 12, dust collecting box 12 is fixedly connected in dust blocking box 11 lower portion, baffle 113 is arranged in dust blocking box 11, and support frame 5 is fixedly connected on dust blocking box 11.

[0025] Dust blocking box 11 adopts square shell structure, and square structure makes equipment installation more stable, facilitates the close connection with air inlet pipe 2, air outlet pipe 3 and other components.Dust collecting box 12 adopts the design of big upper and small lower prism shell, which is beneficial to the centralized collection of dust, so that the dust falling into it gathers downward, reducing the retention and accumulation of dust in the box body.The design of air inlet pipe 2 obliquely downwardly makes the tail gas have a certain impact force when entering dust removal box 1, enhancing the impact effect of dust and baffle 113.The setting of baffle 113 blocks dust and promotes larger particle dust to directly drop into dust collecting box 12 due to inertia, thereby realizing preliminary dust removal.Because the upper portion of baffle 113 does not abut with the top of dust removal box 1, airflow can pass above baffle 113, but at this time the gas flow rate is reduced, and part of smaller dust loses the suspension ability due to flow rate change, further sinking downward.Air outlet pipe 3 is arranged obliquely upwardly, so that the tail gas experiences a rising process again before being discharged, utilizes gravity to make residual dust further separate and drop into dust collecting box 12, enhancing the dust removal effect.In addition, the design of flange 6 at the end of air inlet pipe 2 and air outlet pipe 3 improves the sealing property of equipment and pipeline connection, reduces tail gas leakage, and is also convenient for installation.The fixed connection structure of support frame 5 enhances the stability of the whole equipment.Through the above structure, the device can effectively reduce dust content, improve tail gas purification efficiency, ensure the purity of acid product in subsequent sulfuric acid production process, reduce the abrasion of dust to equipment, prolong the service life of equipment, and reduce enterprise operation and maintenance cost.

[0026] In the preferred embodiment, the dust blocking box 11 is opened at the upper part, and a first box cover 111 is detachably tightly connected to the upper part of the dust blocking box 11. The first box cover 111 is further provided with a handle 112 fixedly arranged on the upper middle part of the first box cover 111. The opening design of the upper part of the dust blocking box 11 makes the maintenance and cleaning of the equipment inside more convenient. The arrangement of the first box cover 111 ensures that the opening can be sealed during normal operation to prevent tail gas leakage, and can be easily opened during cleaning. The handle 112 on the box cover is located in the upper middle part, so that the operator can easily open and close the box cover. Through this structure, after the equipment runs for a period of time, the accumulated dust in the dust collecting box 12 can be quickly cleaned to prevent the dust from accumulating too much to affect the dust removal efficiency. This structure optimizes the maintainability of the device, prolongs the service life of the equipment, reduces the operating cost of the enterprise, and ensures the long-term stability of the tail gas purification effect, making the subsequent sulfuric acid production process more efficient and reliable.

[0027] In the preferred embodiment, a safety ladder 4 is further included, which is fixed to the ground at the lower part and is fixedly connected to the dust blocking box 11 at the upper end. The arrangement of the safety ladder 4 provides a stable climbing channel for the operator, so that he can safely and conveniently reach the upper part of the dust blocking box 11 to perform equipment inspection, maintenance and cleaning work. The safety ladder 4 is fixed to the ground at the lower part, which enhances the stability of the overall structure and avoids affecting the operation safety due to shaking or displacement during use. The upper end is fixedly connected to the dust blocking box 11, so that the ladder and the equipment form an integrated structure, improving the support strength and ensuring the reliability of long-term use. This design reduces the difficulty of manual maintenance, improves the equipment maintenance efficiency, and reduces the risk of dust accumulation caused by inconvenient maintenance.

[0028] In the preferred embodiment, the dust collecting box 12 is opened at the lower part, and a second box cover 121 is arranged at the opening and is rotatably connected to the lower part of the dust collecting box 12 to close the opening of the lower part of the dust collecting box 12. The second box cover 121 is further provided with a hanging ring 122 rotatably arranged on the other side of the rotating shaft of the second box cover 121, and the lower part of the dust collecting box 12 is provided with a hook 123 matched with the hanging ring 122, and the hanging ring 122 is hung on the hook 123 to fix the second box cover 121. The opening design of the lower part of the dust collecting box 12 makes the dust cleaning more efficient, avoiding the influence of long-term dust accumulation on the dust removal effect. The second box cover 121 is rotatably connected, which can be easily opened and closed, improving the operation convenience, while effectively preventing dust leakage in the closed state to ensure the normal operation of the equipment. The cooperation of the hanging ring 122 and the hook 123 enables the box cover to be stably locked after being closed, improving the safety and reliability of the device operation. This structure design is simple and convenient for the operator to quickly open the box cover for dust discharge and easily reset after the discharge is completed, reducing the maintenance workload and improving the equipment cleaning efficiency.

[0029] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A zinc calcined sand tail gas dust removal device, comprising a support frame (5) and a dust collection box (1), wherein the support frame (5) is fixedly connected to the dust collection box (1) for supporting the dust collection box (1), characterized in that: It also includes an air inlet pipe (2), an air outlet pipe (3), and a dust collector (1). The air inlet pipe (2) is closely connected to one side of the dust collector (1), and the air outlet pipe (3) is closely connected to the other side of the dust collector (1). A partition (113) is also provided inside the dust collector (1). The partition (113) is located inside the dust collector (1) and between the air inlet pipe (2) and the air outlet pipe (3). The upper part of the partition (113) does not abut against the top of the dust collector (1).

2. The zinc roasting sand tail gas dust removal device according to claim 1, characterized in that: The dust collection box (1) includes a dust blocking box (11) and a dust collection box (12). The dust collection box (12) is fixed to the lower part of the dust blocking box (11). The partition (113) is arranged inside the dust blocking box (11). The support frame (5) is fixed to the dust blocking box (11).

3. The zinc roasting sand tail gas dust removal device according to claim 1, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are arranged in a V-shape. The air inlet pipe (2) is obliquely downward and closely connected to one side of the dust collector (1). The air outlet pipe (3) is closely connected to the other side of the dust collector (1) and extends obliquely upward. The upper part of the partition plate (113) is higher than the through hole at the connection between the air inlet pipe (2) and the dust collector (1).

4. The zinc roasting sand tail gas dust removal device according to claim 2, characterized in that: It also includes a safety ladder (4), the lower part of which is fixed to the ground and the upper end of which is fixed to the dustproof box (11).

5. The zinc roasting sand tail gas dust removal device according to claim 2, characterized in that: The dustproof box (11) has an opening at the top, and a first box cover (111) is provided at the opening. The first box cover (111) is tightly connected to the top of the dustproof box (11).

6. The zinc roasting sand tail gas dust removal device according to claim 2, characterized in that: The dust collection box (12) has an opening at the bottom, and a second box cover (121) is provided at the opening. The second box cover (121) is rotatably connected to the bottom of the dust collection box (12) to close the opening at the bottom of the dust collection box (12).

7. The zinc calcined sand tail gas dust removal device according to claim 5, characterized in that: The first box cover (111) is also provided with a handle (112), which is fixedly disposed on the upper middle part of the first box cover (111).

8. The zinc calcined sand tail gas dust removal device according to claim 6, characterized in that: The second box cover (121) is also provided with a hanging ring (122), which is rotatably disposed on the other side of the pivot of the second box cover (121). The lower part of the dust collection box (12) is provided with a hook (123) that matches the hanging ring (122), and the hanging ring (122) is hung on the hook (123) to fix the second box cover (121).

Images