Benzyl chloride tail gas spraying treatment device

Abstract

The invention relates to benzyl chloride production equipment, in particular to a benzyl chloride tail gas spraying treatment device. A benzyl chloride tail gas spraying treatment device comprises a base making contact with a foundation, a frame body formed by a support is arranged above the base, a mounting plate is fixed to the upper end of the frame body, a first air duct is mounted on the mounting plate and communicated with a second air duct through an air duct, and an opening is formed in one side of the first air duct. A water tank is arranged in the base, a main water pipe extends into the water tank and is respectively connected with a first spraying pipe and a second spraying pipe through two branch pipes, a water pump is communicated with the main water pipe, and the first spraying pipe and the second spraying pipe are respectively positioned on the upper sides of the first air duct and the second air duct. According to the benzyl chloride tail gas spraying treatment device, waste gas enters the first air duct and is primarily treated under the action of the first spraying pipe, the treated waste gas enters the second air duct and is continuously sprayed, and the sprayed gas is discharged above the second air duct, so that the waste gas treatment operation is finished.

Description

Technical Field

[0001] The invention relates to benzyl chloride production equipment, in particular to a benzyl chloride tail gas spraying treatment device. Background Art

[0002] Benzyl chloride is an important organic chemical raw material and pharmaceutical intermediate.

[0003] Benzyl chloride is a colorless or slightly yellow transparent liquid with a pungent odor. It is insoluble in water, but soluble in most organic solvents such as ethanol, chloroform, and ether.

[0004] Benzyl chloride is widely used in the preparation of organic chemical products such as drugs, dyes, fragrances, plasticizers, synthetic resins, etc. It is also an important raw material for the synthesis of amphetamine drugs, so it is controlled in many countries.

[0005] Benzyl chloride is toxic, irritating and corrosive to the skin, eyes and respiratory tract. Prolonged contact or inhalation of its vapor may cause serious health problems.

[0006] Waste gas is generated during the production of benzyl chloride, which needs to be treated before being discharged. The treatment method includes spraying treatment, which requires a spraying equipment.

[0007] In view of the above-mentioned defects, the designers have actively carried out research and innovation in order to create a benzyl chloride tail gas spray treatment device to make it more valuable for industrial use. Summary of the invention

[0008] In order to solve the above technical problems, the purpose of the present invention is to provide a benzyl chloride tail gas spray treatment device.

[0009] The invention discloses a benzyl chloride tail gas spray treatment device, comprising a base in contact with a foundation, a frame formed by a bracket above the base, a mounting plate fixed to the upper end of the frame, a first air duct mounted on the mounting plate, the first air duct being connected with a second air duct through an air duct, an opening on one side of the first air duct, an exhaust hole above the second air duct, a water tank being arranged in the base, a main water pipe extending into the water tank, the main water pipe being connected to a first spray pipe and a second spray pipe respectively through two branch pipes, a water pump being connected to the main water pipe, and the first spray pipe and the second spray pipe being located on the upper sides of the first air duct and the second air duct respectively.

[0010] In the benzyl chloride tail gas spray treatment device, the waste gas enters the first air duct and completes preliminary treatment under the action of the first spray pipe. The treated waste gas enters the second air duct and continues to be sprayed. The gas after spraying is discharged above the second air duct, completing the waste gas treatment operation.

[0011] Furthermore, a first filter tank is installed below the first air cylinder, and the first filter tank extends into the water tank.

[0012] The first filter tank below the first air cylinder can filter the liquid after spraying, making it convenient to remove waste.

[0013] Furthermore, a second filter tank is installed below the second air cylinder, and the second filter tank is inserted into the water tank.

[0014] The second filter tank below the second air cylinder can filter the liquid after the second spraying, making it convenient to remove the waste.

[0015] Furthermore, the first filter tank and the second filter tank can be taken out from the water tank.

[0016] The first filter tank and the second filter tank are removable to facilitate subsequent cleaning operations.

[0017] Furthermore, rotatable impellers are installed in the first wind tube and the second wind tube.

[0018] The impellers in the first air cylinder and the second air cylinder are used for rapid circulation of the exhaust gas.

[0019] Furthermore, a cover plate is provided on the upper side of the mounting plate, and the cover plate covers the first air cylinder and the air duct.

[0020] The cover plate on the mounting plate covers the first air cylinder and the air duct to form a gas flow channel, which is convenient for guiding the gas into the second air cylinder.

[0021] Furthermore, the cover plate is provided with an inspection window which can be opened and closed.

[0022] The inspection window on the cover is convenient for later maintenance and observation.

[0023] Furthermore, filter tanks are installed between the first and second air ducts and the first and second filter tanks.

[0024] The filter tank is used for the sedimentation of the spray liquid to separate the impurities.

[0025] Furthermore, the filter tank includes a temporary storage tank in the middle, and an overflow plate lower than the side wall of the filter tank is provided on one side of the temporary storage tank, and a guide plate is installed between the overflow plate and the side wall of the filter tank.

[0026] The temporary storage tank of the filter tank is used for temporary storage of liquid. Settlement is carried out in the temporary storage tank, and excess liquid flows out through the overflow plate, which facilitates the separation of waste and liquid.

[0027] Furthermore, a drainage pipe connected to the water tank is installed on the base.

[0028] The drain pipe can discharge the liquid in the water tank to facilitate the discharge of the spray liquid.

[0029] Through the above scheme, the present invention has at least the following advantages: this benzyl chloride tail gas spray treatment device performs double treatment on the waste gas through two sets of spray equipment, the liquid after spraying is filtered through the filter pool and the filter tank to separate the solid waste, and the treated waste gas is discharged and enters the back-end treatment equipment, which is convenient for the treatment of the waste gas.

[0030] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 The present invention Figure 1 The structure diagram of the cover plate is shown below; Figure 3 The present invention Figure 2 Schematic diagram from another perspective; Figure 4 The present invention Figure 2 The main view of Figure 5 It is a structural schematic diagram of the filter tank of the present invention; In the figure, 1, base, 2, frame, 3, mounting plate, 4, first air duct, 5, air duct, 6, second air duct, 7, main water pipe, 8, first spray pipe, 9, second spray pipe, 10, water pump, 11, first filter tank, 12, second filter tank, 13, impeller, 14, cover plate, 15, inspection window, 16, filter tank, 17, temporary storage tank, 18, overflow plate, 19, guide plate, 20, drain pipe. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] See also Figure 1 and Figure 4In this benzyl chloride tail gas spray treatment device, a water tank for storing liquid is provided in the base 1, and the liquid in the water tank is transported to the first spray pipe 8 and the second spray pipe 9 through the water pump 10 and the main water pipe 7. When the exhaust gas enters from the side wall of the first air duct 4, the first spray pipe 8 performs a spray operation for preliminary treatment, and then the exhaust gas rises and enters the bottom of the second air duct 6 after passing through the bent air duct 5. Then the gas flows upward, and the second spray pipe 9 performs secondary treatment. There is an exhaust air window at the upper end of the second air duct 6, which can be connected to other treatment equipment.

[0035] The first filter tank 11 below the first air cylinder 4 is provided with fine through holes. When the liquid is filtered out, the solids mixed in the liquid also remain in the first filter tank 11, which facilitates the cleaning of solid waste.

[0036] The second filter tank 12 below the second air cylinder 6 is provided with fine through holes. When the liquid is filtered out, the solids mixed in the liquid also remain in the second filter tank 12, making it convenient to clean up the solid waste.

[0037] The first filter tank 11 and the second filter tank 12 are placed in the water tank, but are not fixedly installed, so that the first filter tank 11 and the second filter tank 12 can be easily taken out and the waste can be easily cleaned.

[0038] An impeller 13 is installed in the first air duct 4 and the second air duct 6. The impeller 13 is driven by a connected shaft and a motor. When the impeller rotates, the airflow moves from bottom to top, which facilitates the flow of exhaust gas.

[0039] There is a cover plate 14 above the first air duct 4 and the air duct 5. The space between the cover plate 14 and the mounting plate 3 is hollow. When the first air duct 4 is in operation, the exhaust gas flow is blown upward. When passing through the cover plate 14, the exhaust gas flow turns and flows into the air duct 5 and finally enters the second air duct 6.

[0040] The inspection window 15 on the cover plate 14 is in an openable state. The inspection window 15 is a metal plate, one side of which is connected to the cover plate 14 by a hinge, and the other side is provided with a lock for locking. There is a sealing rubber ring between the inspection window 15 and the cover plate 14 to prevent exhaust gas leakage.

[0041] See also Figure 1-Figure 5 The filter pool 16 is located below the first air duct 4 and the second air duct 6, and the waste liquid overflowing from the filter pool 16 flows into the first filter tank 11 and the second filter tank 12, and completes the preliminary separation of solid and liquid through sedimentation.

[0042] The middle part of the filter tank 16 is a temporary storage tank 17. After the liquid flows in, it will first settle. When the liquid level is higher than the overflow plate 18, it will flow out from the overflow plate 18 and flow into the first filter tank 11 and the second filter tank 12 under the guidance of the guide plate 19, which is convenient for secondary filtration.

[0043] The drain pipe 20 installed on the base 1 can drain the liquid in the water tank, making replacement and maintenance convenient.

[0044] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A benzyl chloride tail gas spray treatment device, comprising a base (1) in contact with a foundation, characterized in that: A frame (2) formed by a bracket is disposed above the base (1). A mounting plate (3) is fixed to the upper end of the frame (2). A first air duct (4) is mounted on the mounting plate (3). The first air duct (4) is connected to a second air duct (6) through an air duct (5). One side of the first air duct (4) has an opening. The upper side of the second air duct (6) has an exhaust hole. A water tank is disposed inside the base (1). A main water pipe (7) extends into the water tank. The main water pipe (7) is connected to a first spray pipe (8) and a second spray pipe (9) through two branch pipes. A water pump (10) is connected to the main water pipe (7). The first spray pipe (8) and the second spray pipe (9) are located on the upper sides of the first air duct (4) and the second air duct (6), respectively.

2. A benzyl chloride tail gas spray treatment device according to claim 1, characterized in that: A first filter tank (11) is installed below the first air cylinder (4), and the first filter tank (11) extends into the water tank.

3. A benzyl chloride tail gas spray treatment device according to claim 2, characterized in that: A second filter tank (12) is installed below the second air cylinder (6), and the second filter tank (12) is inserted into the water tank.

4. A benzyl chloride tail gas spray treatment device according to claim 3, characterized in that: The first filter tank (11) and the second filter tank (12) can be taken out from the water tank.

5. A benzyl chloride tail gas spray treatment device according to claim 4, characterized in that: Rotatable impellers (13) are installed in the first air cylinder (4) and the second air cylinder (6).

6. A benzyl chloride tail gas spray treatment device according to claim 5, characterized in that: A cover plate (14) is provided on the upper side of the mounting plate (3), and the cover plate (14) covers the upper part of the first air cylinder (4) and the air duct (5).

7. A benzyl chloride tail gas spray treatment device according to claim 6, characterized in that: The cover plate (14) is provided with an inspection window (15) which can be opened and closed.

8. A benzyl chloride tail gas spray treatment device according to claim 7, characterized in that: A filter tank (16) is installed between the first air cylinder (4) and the second air cylinder (6) and the first filter tank (11) and the second filter tank (12).

9. A benzyl chloride tail gas spray treatment device according to claim 8, characterized in that: The filter tank (16) comprises a temporary storage tank (17) in the middle, an overflow plate (18) lower than the side wall of the filter tank (16) is provided on one side of the temporary storage tank (17), and a guide plate (19) is installed between the overflow plate (18) and the side wall of the filter tank (16).

10. A benzyl chloride tail gas spray treatment device according to claim 9, characterized in that: A drainage pipe (20) connected to the water tank is installed on the base (1).

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