A catalyst preparation kettle for diethyltoluene diamine
By designing a catalyst preparation vessel with a horizontal reactor body and a feeding roller, the problem of uneven delivery of powdered catalyst was solved, thus improving the catalytic efficiency of diethyltoluene diamine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYING HAIRUIBAO NEW MATERIAL CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-23
AI Technical Summary
The existing catalyst preparation vessel cannot uniformly deliver the powdered catalyst into the vessel body, resulting in insufficient mixing and affecting the catalytic efficiency of diethyltoluene diamine.
A catalyst preparation vessel including a horizontal vessel body, a transverse feed trough, and a distribution roller was designed. Through the cooperation of the reciprocating drive mechanism and the distribution roller, the powdered catalyst is evenly spread and transported. Combined with the stirring blades of the stirring assembly, the catalyst and liquid are fully mixed.
This method achieves uniform distribution and thorough mixing of the powdered catalyst within the reactor, thereby improving the catalytic efficiency of diethyltoluene diamine.
Smart Images
Figure CN224388537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixing preparation reactor technology, specifically to a catalyst preparation reactor for diethyltoluene diamine. Background Technology
[0002] Currently, in the process of synthesizing diethyltoluene diamine, it is necessary to first prepare an aromatic amine-aluminum catalyst system by mixing in a catalyst preparation vessel, and then transfer the catalyst and the required materials to the synthesis reactor for heating and stirring.
[0003] The aromatic amine-aluminum catalyst system typically involves grinding insoluble metals such as aluminum powder, zinc powder, aluminum trichloride, and alkyl aluminum into powder form and quantitatively adding them into a preparation vessel. This powder is then mixed with a liquid in the preparation vessel to form a reagent mixture. Because the feed inlet for conveying the powdered catalyst is usually located at the top of the vessel, it is impossible to uniformly deliver the powdered catalyst into the vessel, resulting in insufficient and ineffective mixing of the catalyst within the vessel. This, in turn, affects the catalytic efficiency of the subsequent heating process in the synthesis reactor to prepare diethyltoluene diamine.
[0004] Therefore, there is an urgent need to develop a catalyst preparation vessel with better mixing performance. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a catalyst preparation vessel for diethyltoluene diamine.
[0006] The technical solution of this utility model is: a catalyst preparation vessel for diethyltoluene diamine, comprising a vessel body, which is a horizontal cylindrical body with a transverse feeding trough at the top; the feeding trough is divided into a feeding section, a distributing section, and a discharging section from top to bottom, and a first motor is fixedly installed at one end; a transverse distributing roller is rotatably installed in the inner cavity of the distributing section, and the inner walls on the front and rear sides of the distributing section are arc-shaped and clearance-fitted with the outer wall of the distributing roller; one end of the rotating shaft of the distributing roller passes through the end plate of the feeding trough and is connected to the output shaft of the first motor for transmission, and several distributing grooves are arranged in a circumferential array on its outer wall; the inner width of the bottom of the feeding section and the inner width of the top of the discharging section are both smaller than the outer diameter of the distributing roller;
[0007] It also includes a feeding assembly located directly above the feeding trough. The feeding assembly includes a feeding tank and a reciprocating drive mechanism for driving the feeding tank to move back and forth. The feeding tank is a cylindrical body with a feeding pipe on its top plate and a funnel-shaped bottom plate with a discharge port at the center of the bottom plate. The discharge port extends into the feeding trough and a valve assembly is installed inside the discharge port.
[0008] Preferably, the reciprocating drive mechanism includes a support plate, a drive sprocket, a driven sprocket, and a second motor. The two support plates are respectively fixedly mounted on the left and right sides above the feed trough, and two transverse guide rails are fixed between them. The feeding tank is located between the two guide rails, and multiple rollers that cooperate with the guide rails are installed on its front and rear sides. A connecting piece is fixed on its top plate. The drive sprocket and the driven sprocket are respectively mounted on the two support plates and are connected by a chain. The chain is connected to the connecting piece on the top plate of the feeding tank. The second motor is fixed on the support plate where the drive sprocket is located, and its output shaft is connected to the rotating shaft of the drive sprocket.
[0009] Preferably, the valve assembly includes a telescopic member, a connecting rod, and a valve body. The telescopic member is vertically fixed at the center of the top plate of the feeding tank, and its output rod passes through the top plate of the feeding tank and is fixedly connected to the upper end of the connecting rod. The connecting rod is vertically arranged, and its lower end is fixedly connected to the upper end of the valve body. The valve body is conical, and its side wall is adapted to the inner wall of the discharge port.
[0010] Preferably, it also includes a stirring assembly, which includes a third motor and a stirring shaft. The third motor is fixed at one end of the vessel body, and the stirring shaft is laterally rotatable at the central axis of the vessel body cavity. One end of the stirring shaft passes through the end plate of the vessel body and is connected to the output shaft of the third motor for transmission. Several stirring blades are fixed on the stirring shaft and are arranged alternately from left to right.
[0011] Preferably, the upper and lower sides of one end of the vessel body are respectively provided with a liquid inlet pipe and a material outlet pipe.
[0012] Compared with the prior art, this utility model has the following advantages:
[0013] The reciprocating drive mechanism moves the feeding tank back and forth above the feeding trough, which can evenly spread the powdered catalyst in the feeding tank into the feeding trough. The first motor drives the distributing roller to rotate at a constant speed, which can evenly transport the powdered catalyst in the feeding trough into the reactor body, so that it can be fully mixed with the liquid in the reactor body, and avoid affecting the catalytic efficiency of the next step of heating in the synthesis reactor to prepare diethyltoluene diamine. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a side sectional view of the vessel body;
[0016] Figure 3 This is a cross-sectional view of the feeding tank.
[0017] In the diagram: 1. Kettle body, 2. Feed trough, 201. Feeding section, 202. Distributing section, 203. Discharge section, 3. First motor, 4. Distributing roller, 401. Distributing trough, 5. Feeding tank, 6. Feeding pipe, 7. Support plate, 8. Guide rail, 9. Roller, 10. Connecting piece, 11. Drive sprocket, 12. Driven sprocket, 13. Chain, 14. Second motor, 15. Expansion joint, 16. Connecting rod, 17. Valve body, 18. Third motor, 19. Stirring shaft, 20. Stirring blades, 21. Liquid inlet pipe, 22. Discharge pipe. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1
[0019] Reference Figure 1-2 As shown, a catalyst preparation vessel for diethyltoluene diamine includes a vessel body 1, which is a horizontal cylindrical body with a transverse feed trough 2 at the top. A liquid inlet pipe 21 and a discharge pipe 22 are respectively located on the upper and lower sides of one end of the feed trough 2. The feed trough 2 is divided into a feed section 201, a distribution section 202, and a discharge section 203 from top to bottom. A first motor 3 is fixedly installed at one end of the feed trough 202. A transverse distribution roller 4 is rotatably installed in the inner cavity of the distribution section 202. The inner walls of the front and rear sides of the distribution section 202 are arc-shaped and have a clearance fit with the outer wall of the distribution roller 4. One end of the shaft of the distribution roller 4 passes through the end plate of the feed trough 2 and is connected to the output shaft of the first motor 3 for transmission. Several distribution troughs 401 are arranged in a circumferential array on its outer wall. The inner width of the bottom of the feed section 201 and the inner width of the top of the discharge section 203 are both smaller than the outer diameter of the distribution roller 4.
[0020] It also includes a feeding assembly located directly above the feeding trough 2. The feeding assembly includes a feeding tank 5 and a reciprocating drive mechanism for driving the feeding tank 5 to move back and forth. The feeding tank 5 is a cylindrical body with a feeding pipe 6 on its top plate and a funnel-shaped bottom plate with a discharge port at the center of the bottom plate. The discharge port extends into the feeding trough 2 and a valve assembly is installed inside the discharge port.
[0021] It also includes a stirring assembly, which includes a third motor 18 and a stirring shaft 19. The third motor 18 is fixed at one end of the vessel body 1, and the stirring shaft 19 is laterally rotatable at the central axis of the inner cavity of the vessel body 1. One end of the stirring shaft 1 passes through the end plate of the vessel body 1 and is connected to the output shaft of the third motor 18. Several stirring blades 20 are fixed on the stirring shaft 19 and are arranged alternately from left to right.
[0022] During production, liquid is introduced into the inner cavity of the reactor body 1 through the liquid inlet pipe 21. The third motor 18 is started to drive the stirring shaft 19 to rotate, which in turn drives the stirring blades 20 to rotate and stir inside the reactor body 1. Powdered catalyst is added into the feeding tank 5 through the feed pipe 6. The valve assembly is opened and the feeding tank 5 is moved back and forth above the feeding trough 2 by the reciprocating drive mechanism, so that the powdered catalyst in the feeding tank 5 is evenly spread into the feeding trough 2. Subsequently, the first motor 3 is started to drive the distributing roller 4 to rotate at a constant speed, so that the powdered catalyst in the feeding trough 2 is evenly transported into the reactor body 1 through the distributing roller 4, so that it is fully mixed with the liquid in the reactor body 1.
[0023] In other embodiments, to improve production efficiency, the reciprocating drive mechanism and the first motor 3 can operate simultaneously. Example 2
[0024] As a preferred embodiment of this utility model, this embodiment designs the reciprocating drive mechanism based on Embodiment 1, specifically as follows:
[0025] The reciprocating drive mechanism includes a support plate 7, a drive sprocket 11, a driven sprocket 12, and a second motor 14. The two support plates 7 are fixedly mounted on the left and right sides above the feed trough 2, respectively, and two transverse guide rails 8 are fixed between them. The feeding tank 5 is located between the two guide rails 8, and two rollers 9 that cooperate with the guide rails 8 are installed on its front and rear sides. A connecting piece 10 is fixed on its top plate. The drive sprocket 11 and the driven sprocket 12 are respectively mounted on the two support plates 7, and the two are connected by a chain 13. The chain 13 is connected to the connecting piece 10 on the top plate of the feeding tank 5. The second motor 14 is fixed on the support plate 7 where the drive sprocket 11 is located, and its output shaft is connected to the rotating shaft of the drive sprocket 11.
[0026] During operation, the second motor 14 is started to drive the drive sprocket 11 to rotate, which in turn drives the feeding tank 5 to move horizontally along the guide rail 8 via the chain 13; when the feeding tank 5 reaches the end of the feeding trough 2, the second motor 14 reverses, thereby driving the feeding tank 5 to move back and forth. Example 3
[0027] As a preferred embodiment of this utility model, this embodiment designs the valve assembly based on Embodiment 1, specifically as follows:
[0028] Reference Figure 3 As shown, the valve assembly includes a telescopic device 15, a connecting rod 16, and a valve body 17. The telescopic device 15 is vertically fixed at the center of the top plate of the feeding tank 5, and its output rod passes through the top plate of the feeding tank 5 and is fixedly connected to the upper end of the connecting rod 16. The connecting rod 16 is vertically arranged, and its lower end is fixedly connected to the upper end of the valve body 17. The valve body 17 is conical, and its side wall is adapted to the inner wall of the discharge port.
[0029] When in operation, the expansion joint 15 is activated, and its output rod extends and drives the valve body 17 downward through the connecting rod 16, thereby opening the discharge port of the feeding tank 5.
[0030] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.
Claims
1. A reactor for preparing diethyltoluene diamine using a catalyst, comprising a reactor body, characterized in that: The vessel body is a horizontal cylindrical body with a transverse feeding trough at the top. The feeding trough is divided into a feeding section, a distributing section, and a discharging section from top to bottom, with a first motor fixedly installed at one end. A transverse distributing roller is rotatably installed in the inner cavity of the distributing section. The inner walls of the front and rear sides of the distributing section are arc-shaped and have a clearance fit with the outer wall of the distributing roller. One end of the distributing roller's rotating shaft passes through the end plate of the feeding trough and is connected to the output shaft of the first motor for transmission. Several distributing troughs are arranged in a circumferential array on its outer wall. The inner width of the bottom of the feeding section and the inner width of the top of the discharging section are both smaller than the outer diameter of the distributing roller. It also includes a feeding assembly located directly above the feeding trough. The feeding assembly includes a feeding tank and a reciprocating drive mechanism for driving the feeding tank to move back and forth. The feeding tank is a cylindrical body with a feeding pipe on its top plate and a funnel-shaped bottom plate with a discharge port at the center of the bottom plate. The discharge port extends into the feeding trough and a valve assembly is installed inside the discharge port.
2. The catalyst preparation reactor for diethyltoluenediamine according to claim 1, characterized in that: The reciprocating drive mechanism includes a support plate, a drive sprocket, a driven sprocket, and a second motor. The two support plates are fixedly mounted on the left and right sides above the feed trough, respectively, and two transverse guide rails are fixed between them. The feeding tank is located between the two guide rails, and multiple rollers that cooperate with the guide rails are installed on its front and rear sides. A connecting piece is fixed on its top plate. The drive sprocket and the driven sprocket are respectively mounted on the two support plates and are connected by a chain. The chain is connected to the connecting piece on the top plate of the feeding tank. The second motor is fixed on the support plate where the drive sprocket is located, and its output shaft is connected to the rotating shaft of the drive sprocket.
3. The catalyst preparation reactor for diethyltoluenediamine according to claim 1, characterized in that: The valve assembly includes a telescopic device, a connecting rod, and a valve body. The telescopic device is vertically fixed at the center of the top plate of the feeding tank, and its output rod passes through the top plate of the feeding tank and is fixedly connected to the upper end of the connecting rod. The connecting rod is vertically arranged, and its lower end is fixedly connected to the upper end of the valve body. The valve body is conical, and its side wall is adapted to the inner wall of the discharge port.
4. The catalyst preparation vessel for diethyltoluenediamine according to claim 1, characterized in that: It also includes a stirring assembly, which includes a third motor and a stirring shaft. The third motor is fixed at one end of the vessel body, and the stirring shaft is laterally rotatable at the central axis of the vessel body cavity. One end of the stirring shaft passes through the end plate of the vessel body and is connected to the output shaft of the third motor. Several stirring blades are fixed on the stirring shaft and are arranged alternately from left to right.
5. The catalyst preparation reactor for diethyltoluenediamine according to claim 1, characterized in that: The upper and lower sides of one end of the vessel are respectively provided with an inlet pipe and a outlet pipe.