Diethyl oxalate feeding and mixing device

Abstract

The utility model discloses a diethyl oxalate feeding and mixing device, and belongs to the technical field of chemical raw material preparation. The diethyl oxalate feeding and mixing device comprises a mixing tank which is fixedly connected with a feeding pipe, and further comprises a connecting pipe which is fixedly connected with the feeding pipe; the mixing part is fixedly connected to the connecting pipe; the first conveying pipe is fixedly connected to the bottom of the mixing part; the second conveying pipe is fixedly connected to the first conveying pipe; the driving rod is rotationally connected to the mixing tank; the stirring blade is fixedly connected to the driving rod; two materials are premixed through the mixing part in the device before mixing, the mixing effect of follow-up mixing can be effectively improved, meanwhile, the materials in the tank are continuously extracted through the driving cylinder arranged in the device, the extracted materials are sprayed out to disturb the raw materials in the tank, the raw materials in the tank can be effectively turned over, and the mixing effect of the raw materials in the tank is effectively improved. Furthermore, the mixing effect of the raw materials is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical raw material preparation equipment, and in particular to a diethyl oxalate feeding and mixing device. Background Technology

[0002] Diethyl oxalate is a commonly used chemical solvent. In the preparation of diethyl oxalate, it is generally prepared by mixing crude dimethyl oxalate raw material with ethanol.

[0003] Currently, the main method for mixing diethyl oxalate in existing technologies is through in-vessel stirring. Stirring mixes the materials inside the vessel. However, due to the large diameter of the diethyl oxalate mixing vessel, the raw materials inside the vessel may not be fully mixed, and the mixing effect and reaction efficiency need to be further improved. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to provide a diethyl oxalate feeding and mixing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A diethyl oxalate feeding and mixing device includes a mixing tank, on which a feed pipe is fixedly connected, and further includes:

[0007] The connecting pipe is fixedly connected to the feed pipe;

[0008] The mixing section is fixedly connected to the connecting pipe;

[0009] The first feed pipe is fixedly connected to the bottom of the mixing section;

[0010] The second conveying pipe is fixedly connected to the first conveying pipe;

[0011] The drive rod is rotatably connected to the mixing tank;

[0012] The stirring blade is fixedly connected to the drive rod.

[0013] Preferably, a connecting block is fixedly connected to the drive rod, a drive cylinder is fixedly connected to the connecting block, a material extraction pipe is fixedly connected to the side wall of the drive cylinder, a discharge hole is opened inside the drive rod, a spray pipe is fixedly connected to the drive cylinder, and the spray pipe is connected to the discharge hole.

[0014] Furthermore, a drive block is fixedly connected to the inner wall of the mixing tank, and multiple sets of the drive blocks are evenly distributed on the mixing tank. A sliding plug is slidably connected inside the drive cylinder, and a push rod is fixedly connected to the sliding plug. The push rod abuts against the drive block.

[0015] Furthermore, a ball bearing is rotatably connected to the end of the push rod away from the slide plug, and the ball bearing abuts against the drive block.

[0016] Furthermore, a spring is fixedly connected to the slide, and the end of the spring away from the slide is fixedly connected to the inner wall of the drive cylinder.

[0017] Preferably, both the extraction pipe and the spraying pipe are connected to a one-way valve.

[0018] Furthermore, a support frame is fixedly connected to the top of the mixing tank, and a drive motor is fixedly connected to the support frame. The drive end of the drive motor is fixedly connected to the drive rod.

[0019] Compared with the prior art, the present invention provides a diethyl oxalate feeding and mixing device, which has the following beneficial effects:

[0020] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model premixes two materials before mixing through the mixing section of the device, which can effectively improve the mixing effect of subsequent mixing. At the same time, the drive cylinder in the device continuously draws materials from the tank, and then uses the drawn materials to spray out and disturb the raw materials in the tank, which can effectively turn the raw materials in the tank over, thereby effectively improving the mixing effect of the raw materials. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a diethyl oxalate feeding and mixing device proposed in this utility model;

[0022] Figure 2 This is a cross-sectional view of the mixing tank in a diethyl oxalate feeding and mixing device proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the connection structure between the drive rod and the drive cylinder in a diethyl oxalate feeding and mixing device proposed in this utility model.

[0024] Figure 4 This utility model proposes a diethyl oxalate feeding and mixing device. Figure 2 Enlarged view of section A in the middle.

[0025] In the diagram: 1. Mixing tank; 101. Support frame; 102. Drive block; 103. Feed pipe; 2. Mixing section; 201. Connecting pipe; 202. First conveying pipe; 203. Second conveying pipe; 3. Drive motor; 4. Drive rod; 401. Discharge hole; 402. Connecting block; 5. Stirring blade; 6. Drive cylinder; 601. Extraction pipe; 602. Spraying pipe; 603. Sliding plug; 604. Spring; 7. Push rod; 701. Ball bearing. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example:

[0028] Reference Figures 1-4 A diethyl oxalate feeding and mixing device includes a mixing tank 1, a feed pipe 103 fixedly connected to the mixing tank 1, and further includes:

[0029] Connecting pipe 201 is fixedly connected to feed pipe 103;

[0030] Mixing section 2 is fixedly connected to connecting pipe 201;

[0031] The first conveying pipe 202 is fixedly connected to the bottom of the mixing section 2;

[0032] The second conveying pipe 203 is fixedly connected to the first conveying pipe 202;

[0033] Drive rod 4 is rotatably connected to mixing tank 1;

[0034] The stirring blade 5 is fixedly connected to the drive rod 4.

[0035] A connecting block 402 is fixedly connected to the drive rod 4, a drive cylinder 6 is fixedly connected to the connecting block 402, a material extraction pipe 601 is fixedly connected to the side wall of the drive cylinder 6, a discharge hole 401 is opened inside the drive rod 4, a spray pipe 602 is fixedly connected to the drive cylinder 6, and the spray pipe 602 is connected to the discharge hole 401.

[0036] A drive block 102 is fixedly connected to the inner wall of the mixing tank 1. Multiple sets of drive blocks 102 are evenly distributed on the mixing tank 1. A slide plug 603 is slidably connected inside the drive cylinder 6. A push rod 7 is fixedly connected to the slide plug 603. The push rod 7 abuts against the drive block 102.

[0037] The end of the push rod 7 away from the slide plug 603 is rotatably connected to a ball bearing 701, which abuts against the drive block 102.

[0038] Reference Figure 4 By using the ball bearings 701 on the push rod 7, it is possible to ensure that the push rod 7 can slide stably when it is pressed by the drive block 102.

[0039] A spring 604 is fixedly connected to the slide plug 603, and the end of the spring 604 away from the slide plug 603 is fixedly connected to the inner wall of the drive cylinder 6.

[0040] Reference Figure 4The spring 604 provided on the slider 603 enables the slider 603 to be quickly reset.

[0041] Both the material extraction pipe 601 and the material spraying pipe 602 are connected to one-way valves.

[0042] A support frame 101 is fixedly connected to the top of the mixing tank 1, and a drive motor 3 is fixedly connected to the support frame 101. The drive end of the drive motor 3 is fixedly connected to the drive rod 4.

[0043] Reference Figure 1 Before use, connect the first conveying pipe 202 to the crude dimethyl oxalate storage tank and the second conveying pipe 203 to the ethanol storage tank.

[0044] In use, crude dimethyl oxalate and ethanol raw material are pumped into mixing section 2 by a feed pump for preliminary mixing. Mixing section 2 then pumps the preliminarily mixed raw material into mixing tank 1 through connecting pipe 201.

[0045] Reference Figures 1-2 During mixing, the staff turns on the drive motor 3, which drives the drive rod 4 to rotate. The rotation of the drive rod 4 drives the stirring blade 5 fixed at the bottom to rotate. The stirring blade 5 stirs the raw materials in the tank, thereby fully mixing the raw materials.

[0046] Reference Figures 1-4 During the rotation of the drive rod 4, the drive rod 4 will also drive the connecting block 402 to rotate synchronously. The rotation of the connecting block 402 will drive the drive cylinder 6 to rotate, and the rotation of the drive cylinder 6 will drive the push rod 7 to rotate. When the push rod 7 rotates at a certain angle, the ball bearing 701 on the push rod 7 will pass through the arc-shaped drive block 102. At this time, under the pressure of the drive block 102, the push rod 7 will push the slide plug 603 to slide. The sliding of the slide plug 603 will squeeze the material in the drive cylinder 6 out. The squeezed material will be sprayed into the discharge hole 401 through the spray pipe 602, and then squeeze the material in the discharge hole 401 back into the tank. The squeezed material will impact and mix with the material in the tank again, further improving the mixing effect of the material.

[0047] When the ball bearing 701 on the push rod 7 completely slides past the drive block 102, the slide plug 603 will quickly reset under the action of the spring 604, and then draw the material in the tank through the extraction pipe 601. The extracted material is stored in the drive cylinder 6 so that it can be sprayed out to disturb the material in the tank next time.

[0048] The mixing section 2 in this device premixes the two materials before mixing, which can effectively improve the mixing effect of subsequent mixing. At the same time, the drive cylinder 6 in this device continuously draws materials from the tank and then sprays out the drawn materials to disturb the raw materials in the tank, which can effectively turn the raw materials in the tank over, thereby effectively improving the mixing effect of the raw materials.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A diethyl oxalate feeding and mixing device, comprising a mixing tank (1), wherein a feed pipe (103) is fixedly connected to the mixing tank (1), characterized in that, Also includes: The connecting pipe (201) is fixedly connected to the feed pipe (103); The mixing section (2) is fixedly connected to the connecting pipe (201); The first feed pipe (202) is fixedly connected to the bottom of the mixing section (2); The second conveying pipe (203) is fixedly connected to the first conveying pipe (202); The drive rod (4) is rotatably connected to the mixing tank (1); The stirring blade (5) is fixedly connected to the drive rod (4).

2. The diethyl oxalate feeding and mixing device according to claim 1, characterized in that, A connecting block (402) is fixedly connected to the drive rod (4), a drive cylinder (6) is fixedly connected to the connecting block (402), a material extraction pipe (601) is fixedly connected to the side wall of the drive cylinder (6), a discharge hole (401) is opened inside the drive rod (4), a spray pipe (602) is fixedly connected to the drive cylinder (6), and the spray pipe (602) is connected to the discharge hole (401).

3. The diethyl oxalate feeding and mixing device according to claim 2, characterized in that, A drive block (102) is fixedly connected to the inner wall of the mixing tank (1). Multiple sets of drive blocks (102) are evenly distributed on the mixing tank (1). A sliding plug (603) is slidably connected inside the drive cylinder (6). A push rod (7) is fixedly connected to the sliding plug (603). The push rod (7) abuts against the drive block (102).

4. The diethyl oxalate feeding and mixing device according to claim 3, characterized in that, The push rod (7) is rotatably connected to a ball bearing (701) at the end away from the slide plug (603), and the ball bearing (701) abuts against the drive block (102).

5. The diethyl oxalate feeding and mixing device according to claim 3, characterized in that, A spring (604) is fixedly connected to the slide (603), and one end of the spring (604) away from the slide (603) is fixedly connected to the inner wall of the drive cylinder (6).

6. The diethyl oxalate feeding and mixing device according to claim 2, characterized in that, Both the material extraction pipe (601) and the material spraying pipe (602) are connected to a one-way valve.

7. The diethyl oxalate feeding and mixing device according to claim 2, characterized in that, The top of the mixing tank (1) is fixedly connected to a support frame (101), and a drive motor (3) is fixedly connected to the support frame (101). The drive end of the drive motor (3) is fixedly connected to the drive rod (4).

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