Methyl methacrylate material flow dehydration reaction kettle beneficial to waste heat recovery

Abstract

The utility model relates to the technical field of dehydration reaction kettles, in particular to a methyl methacrylate material flow dehydration reaction kettle beneficial to waste heat recovery. The oil storage tank comprises an oil storage tank body, kettle bodies are symmetrically arranged on the two sides of the oil storage tank body, a cover body is arranged at the top of each kettle body, a mounting frame is arranged at the top of each cover body, a stirring device is downwards arranged at the top of each mounting frame, a pair of transferring assemblies is arranged on the front face of the oil storage tank body, and the two transferring assemblies are connected with the kettle bodies on the two sides respectively. In the cooling stage after material dehydration is completed, uncooled heating oil in the left kettle body can be pumped back to the oil storage tank body through the transfer assembly and then transferred into the heating layer of the right kettle body, waste heat recycling is achieved, the right kettle body can be preheated in advance, preparation is made for next-round dehydration treatment, and waste heat recycling is achieved. And the utilization rate of energy is improved, the extra energy consumption is reduced, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to dehydration reaction kettle technical field especially relates to a methyl methacrylate stream dehydration reaction kettle of benefit to waste heat recovery. BACKGROUND

[0002] In the chemical production field, the dehydration treatment of methyl methacrylate is a key link. The traditional dehydration reaction kettle usually adopts single heating and cooling mode, lacks effective waste heat recovery utilization mechanism. This mode has many disadvantages, on the one hand, after the dehydration of material is completed, the high-temperature heating medium is directly discarded or cooled, and a large amount of heat energy is wasted, which leads to low energy utilization rate and significantly increases production cost. On the other hand, the reaction kettle cooling process usually takes a long time, greatly prolongs the entire production cycle, reduces the production efficiency, and is difficult to meet the demand of modern large-scale and efficient production. SUMMARY

[0003] The utility model aims at providing a methyl methacrylate stream dehydration reaction kettle of benefit to waste heat recovery to solve the problems in the background art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme, it includes the oil storage tank, the oil storage tank both sides symmetry is provided with the kettle body, the kettle body top is provided with the cover, the cover top is provided with the mounting bracket, the mounting bracket top is provided with the stirring device downward, the oil storage tank front is provided with a pair of transfer components, two transfer components are connected with both sides kettle body respectively.

[0005] As the utility model is preferred, the kettle body is provided with a reaction inner shell, the reaction inner shell and the kettle body form a heating layer, the heating layer is provided with a heating wire, the outer wall of the kettle body is provided with a liquid inlet pipe body and a liquid outlet pipe body, the liquid inlet pipe body is located above the liquid outlet pipe body.

[0006] As the utility model is preferred, the transfer component includes the first pump body and the second pump body arranged on the front of the oil storage tank, the first pump body is located above the second pump body, the output end of the first pump body is provided with a discharge valve pipe, the other end of the discharge valve pipe is communicated with the oil storage tank, the input end of the second pump body is provided with a material extraction valve pipe, the other end of the material extraction valve pipe is communicated with the oil storage tank, the transfer component further includes an X-shaped valve pipe, the two ports of one side of the X-shaped valve pipe are connected with the liquid inlet pipe body and the liquid outlet pipe body respectively, the two ports of the other side of the X-shaped valve pipe are connected with the input end of the first pump body and the output end of the second pump body respectively.

[0007] As the utility model is preferred, the top of the oil storage tank is provided with a charging port, the bottom of the oil storage tank is provided with supporting legs at four corners, and the bottom of the oil storage tank is provided with a discharge port.

[0008] As the utility model preferred, the oil storage tank is filled with heat conducting oil.

[0009] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0010] 1. In the cooling stage after the material dehydration is completed, the uncooled heating oil in the left kettle body can be pumped back to the oil storage tank by the transfer assembly, and then transferred to the heating layer of the right kettle body, so that the waste heat is recycled, the right kettle body can be preheated in advance, the next round of dehydration treatment is prepared, the energy utilization rate is improved, the additional energy consumption is reduced, and the cost is reduced.

[0011] 2. After the heating oil is pumped out from one side of the kettle body, the cooling speed of the kettle body can be accelerated, the overall production cycle is shortened, the production efficiency is improved, the whole operation process of methyl methacrylate stream dehydration is more compact and efficient, and the industrial large-scale application is more beneficial. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the kettle body structure of the utility model;

[0014] Figure 3 It is a kettle body side section view display diagram of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the oil storage tank and the transfer assembly when assembling;

[0016] Figure 5 It is a schematic diagram of the structure of the transfer assembly of the utility model;

[0017] Figure 6 It is a schematic diagram of the structure of the oil storage tank of the utility model.

[0018] The kettle body 1, the reaction inner shell 10, the heating layer 11, the liquid inlet pipe body 12, the liquid outlet pipe body 13, the heating wire 14, the cover 2, the mounting frame 20, the stirring device 21, the oil storage tank 3, the charging port 30, the supporting leg 31, the discharging port 32, the transfer assembly 4, the first pump body 40, the discharge valve pipe 41, the material pumping valve pipe 42, the X-shaped valve pipe 43, the second pump body 44. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0020] like Figures 1-6 As shown, the present invention proposes a methyl methacrylate dehydration reactor that facilitates waste heat recovery. The present invention includes an oil storage tank 3 located in the middle, with reactor bodies 1 symmetrically distributed on both sides. The cover 2 on the top of the reactor body 1 is fixed by bolts to provide a closed environment for subsequent operations. The mounting frame 20 is placed on the top of the cover 2, and the stirring device 21 extends downward from the top of the mounting frame 20 into the interior of the reactor body 1 to perform stirring operations during material processing.

[0021] Regarding the internal structure of the vessel body 1, the inner reaction shell 10 is located inside the vessel body 1, and a heating layer 11 is formed between the inner reaction shell 10 and the vessel body 1. A heating wire 14 is installed in the heating layer 11 to provide heating conditions for the material inside the inner reaction shell 10. On the outer wall of the vessel body 1, the liquid inlet pipe 12 and the liquid outlet pipe 13 are respectively set at different heights, with the liquid inlet pipe 12 above the liquid outlet pipe 13. They are the channels for heating oil to enter and exit the heating layer 11.

[0022] The transfer assembly 4 plays a crucial role in connecting and transmitting between the oil storage tank 3 and the vessel 1. Each transfer assembly 4 consists of a first pump body 40 and a second pump body 44. The first pump body 40 is located above the second pump body 44. The output end of the first pump body 40 is connected to the discharge valve pipe 41, which leads to the oil storage tank 3, thus realizing the function of pumping the liquid back to the oil storage tank 3. The input end of the second pump body 44 is connected to the extraction valve pipe 42, which is also connected to the oil storage tank 3, and is used to extract the liquid in the oil storage tank 3. The X-shaped valve pipe 43 is the core connecting component of the transfer assembly 4. Its two ports on one side are tightly connected to the liquid inlet pipe 12 and the liquid outlet pipe 13 of the vessel 1, respectively. Its two ports on the other side are connected to the input end of the first pump body 40 and the output end of the second pump body 44. Through the control of each valve, the orderly transfer of heating oil between the oil storage tank 3 and the heating layer 11 of the vessel 1 is realized.

[0023] In addition, the top of the oil storage tank 3 is equipped with a loading port 30 for easy addition of liquid media such as heat transfer oil. The four corner support legs 31 at the bottom provide support to ensure the stable placement of the oil storage tank 3. The discharge port 32 at the bottom can discharge the liquid in the oil storage tank 3 when needed. During normal operation, the oil storage tank 3 is filled with heat transfer oil, which serves as a medium for heat transfer and recovery. It circulates throughout the operation of the entire device to achieve functions such as heating, cooling and waste heat recovery of the materials in the vessel 1.

[0024] When using (for ease of description, ...), Figure 1 The transfer component 4 on the left is called transfer component 4-1, and the one on the right is called transfer component 4-2. First, close the valve connecting the X-shaped valve pipe 43 to the liquid outlet pipe 13 in transfer component 4-1, as well as the valve on the discharge valve pipe 41 of the first pump body 40. Then, start the second pump body 44 to extract the heating oil in the oil storage tank 3 and discharge it into the heating layer 11 through the extraction valve pipe 42 from the port of the X-shaped valve pipe 43 and the liquid inlet pipe 12. After the heating oil is completely discharged, close the last valve on the X-shaped valve pipe 43 and the valve on the extraction valve pipe 42. Then, turn on the heating wire 14 to heat the material. When the temperature rises, pour the material into the reaction shell 10 and carry out dehydration treatment with the help of the stirring device 21.

[0025] After the material is dehydrated, wait for the internal material to cool down. During the cooling process, open the valve on the connection port between the X-shaped valve pipe 43 and the liquid outlet pipe 13, as well as the valve on the discharge valve pipe 41, and start the first pump body 40 to pump the uncooled heating oil in the left side of the kettle body 1 into the oil storage tank body 3.

[0026] Finally, using the same operating method, the uncooled heating oil in the oil storage tank 3 is pumped into the heating layer 11 of the right vessel 1 using the transfer component 4. The right vessel 1 is preheated by recovering residual heat in order to carry out the second round of dehydration treatment. At the same time, the cooling efficiency of the left vessel 1 is improved after the heating oil is extracted.

[0027] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A dehydration reactor for methyl methacrylate streams that facilitates waste heat recovery, comprising an oil storage tank (3), characterized in that: The oil storage tank (3) is symmetrically provided with a vessel body (1) on both sides. The vessel body (1) is provided with a cover (2) on the top. The cover (2) is provided with a mounting bracket (20) on the top. The mounting bracket (20) is provided with a stirring device (21) on the top downward. The oil storage tank (3) is provided with a pair of transfer components (4) on the front. The two transfer components (4) are respectively connected to the vessel bodies (1) on both sides.

2. The methyl methacrylate dehydration reactor according to claim 1, which facilitates waste heat recovery, is characterized in that: The reactor body (1) is provided with a reaction inner shell (10), and a heating layer (11) is formed between the reaction inner shell (10) and the reactor body (1). A heating wire (14) is provided in the heating layer (11). An inlet pipe (12) and an outlet pipe (13) are provided on the outer wall of the reactor body (1). The inlet pipe (12) is located above the outlet pipe (13).

3. The methyl methacrylate dehydration reactor according to claim 2, which facilitates waste heat recovery, is characterized in that: The transfer assembly (4) includes a first pump body (40) and a second pump body (44) disposed on the front of the oil storage tank (3). The first pump body (40) is located above the second pump body (44). A discharge valve pipe (41) is provided on the output end of the first pump body (40). The other end of the discharge valve pipe (41) is connected to the oil storage tank (3). A suction valve pipe (42) is provided on the input end of the second pump body (44). The other end of the suction valve pipe (42) is connected to the oil storage tank (3). The transfer assembly (4) also includes an X-shaped valve pipe (43). Two ports on one side of the X-shaped valve pipe (43) are connected to the inlet pipe body (12) and the outlet pipe body (13) respectively. Two ports on the other side of the X-shaped valve pipe (43) are connected to the input end of the first pump body (40) and the output end of the second pump body (44) respectively.

4. The methyl methacrylate dehydration reactor according to claim 1, which facilitates waste heat recovery, is characterized in that: The top of the oil storage tank (3) is provided with a loading port (30), the bottom four corners of the oil storage tank (3) are provided with support legs (31), and the bottom of the oil storage tank (3) is provided with a discharge port (32).

5. The methyl methacrylate dehydration reactor according to claim 1, characterized in that: The oil storage tank (3) is filled with heat-conducting oil.

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