Raw material mixing device for preparing p-benzoquinone

Abstract

The invention discloses a raw material mixing device for preparing p-benzoquinone, and belongs to the technical field of chemical equipment.The raw material mixing device for preparing p-benzoquinone comprises a device body, a separable lower bottom cover is fixedly installed at the bottom of the device body, and a discharging electromagnetic valve is installed in the center of the bottom of the separable lower bottom cover; the bottom of the center of the mixing tank is fixedly connected with a circulating flow guide assembly, the top of the circulating flow guide assembly is in threaded connection with a pre-mixing assembly, and a spiral mixing assembly matched with the circulating flow guide assembly is installed in the mixing tank; the spiral mixing assembly is further fixedly provided with a pre-stirring frame matched with the pre-mixing assembly, and the cover body is further fixedly provided with two raw material adding assemblies. By designing the circulating flow guide assembly and the spiral mixing assembly, circulating mixing of various raw materials from bottom to top is achieved, the mixing efficiency is guaranteed, and meanwhile the quality of products is also guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical equipment, and in particular relates to a raw material mixing device for preparing p-benzoquinone. Background Art

[0002] p-Benzoquinone is an important organic chemical intermediate, commonly used in the production of dyes, pesticides, medicines and rubber additives. Its preparation process usually involves certain oxidation reactions, especially through the oxidation reaction of aromatic hydrocarbons. In the oxidation reaction, extraction and crystallization process of p-benzoquinone, in order to improve the reaction efficiency, promote the uniform mixing of substances and control the formation of crystals, it is generally necessary to use special stirring equipment for stirring processing.

[0003] The raw material mixing device for the preparation of p-benzoquinone is one of the key equipment in the entire production process. The mixing device needs to ensure that the raw materials can be evenly mixed so that the oxidation reaction or other chemical reactions can proceed smoothly, and to avoid uneven reactions leading to poor product quality. There are many different types of mixing and stirring equipment on the market, but most of the existing mixing equipment uses paddle stirring structures, anchor stirring structures, and turbine stirring structures. Although the above stirring structures can achieve mixing and stirring effects, in the actual mixing process, due to the different addition sequences and addition amounts of various raw materials, most stirring equipment cannot achieve full circulation stirring of various raw materials from bottom to top, which will affect the mixing effect to a certain extent, and thus will also affect the quality of the final product to a certain extent. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a raw material mixing device for preparing p-benzoquinone.

[0005] The technical solution adopted to solve the above technical problems is: a raw material mixing device for preparing p-benzoquinone, comprising a device body, the device body comprising a mixing tank, a cover body is installed on the top of the mixing tank, a detachable lower bottom cover is fixedly installed on the bottom of the device body, and a discharge solenoid valve is installed at the center of the bottom of the detachable lower bottom cover; A circulation guide assembly is fixedly connected to the bottom of the center of the mixing tank, a pre-mixing assembly is threadedly connected to the top of the circulation guide assembly, and a spiral mixing assembly matching the circulation guide assembly is installed in the mixing tank; The spiral mixing component is also fixedly mounted with a pre-mixing frame matching the pre-mixing component, and the cover body is also fixedly mounted with two sets of raw material adding components; A detachable flow mixing component is also installed inside the mixing tank.

[0006] Furthermore, feed ports are provided on both sides of the top of the cover body, an observation window is provided at the front end of the top of the cover body, a fixed support is fixedly connected to the center of the top of the cover body, a pressure relief valve is installed at the rear end of the top of the cover body, and a plurality of evenly distributed threaded columns are fixedly connected to the periphery of the bottom of the mixing tank.

[0007] Through the above technical solution, the feed ports on both sides of the top of the cover body can be used to add different raw materials, the observation window at the front end allows the operator to observe the processing status inside the mixing tank, and the pressure relief valve at the rear end can achieve automatic pressure relief when the pressure in the tank is too high.

[0008] Furthermore, the detachable lower bottom cover is designed as a funnel-shaped structure, and the detachable lower bottom cover is sleeved on a plurality of threaded columns and is locked and fixed by a plurality of nuts.

[0009] Through the above technical solution, stable connection and fixation can be achieved, and disassembly is also convenient for later inspection and maintenance.

[0010] Furthermore, the circulation guide assembly includes a conical guide cover fixed to the bottom of the inner wall of the mixing tank, a plurality of evenly distributed confluence holes are opened around the bottom of the conical guide cover, a fixed cover is fixedly connected to the top of the conical guide cover, a plurality of evenly distributed spray holes are opened around the fixed cover, and a connecting seat is provided at the center of the top of the fixed cover.

[0011] Through the above technical scheme, by designing a conical flow guide cover, the internal space of the mixing tank can be divided into two areas. The raw materials just filled will enter the bottom of the mixing tank, and then enter the conical flow guide cover and the detachable lower bottom cover through the multiple confluence holes on the side of the bottom of the conical flow guide cover. In the actual working process, as the spiral mixing component is driven, the spiral mixing component can lift and pressurize the mixture entering the conical flow guide cover and the detachable lower bottom cover, and finally spray it outward evenly from the multiple jet holes on the side of the fixed cover, thereby realizing the circulation mixing of various raw materials from bottom to top, effectively avoiding the uneven mixing of multiple raw materials, and also avoiding the sedimentation at the bottom of the tank body, which not only ensures the mixing efficiency, but also ensures the quality of the output.

[0012] Furthermore, the premixing assembly includes a funnel-shaped collector, a threaded mounting seat is provided at the center of the bottom of the collector, the threaded mounting seat is threadedly connected to the top of the circulation guide assembly, and a plurality of evenly distributed water leakage holes are opened around the bottom of the collector.

[0013] Through the above technical scheme, the premixing component is used for premixing of various raw materials. The raw materials added by the raw material adding component will first enter the collector. As the spiral mixing component is started, the spiral mixing component will drive the premixing frame to rotate, so that the various raw materials entering the collector can be premixed and mixed. As the raw materials are continuously added, the various premixed raw materials will overflow to the bottom of the mixing tank through the opening at the top of the collector. When the raw material filling is completed, the mixture that fails to overflow from the opening at the top of the collector will drip to the bottom of the mixing tank through the multiple leakage holes at the bottom of the collector.

[0014] Furthermore, the spiral mixing assembly includes a driving motor fixedly installed at the top center of the device body, the bottom end of the driving motor output shaft is fixedly connected to a transmission shaft, and the bottom of the outer wall of the transmission shaft is fixedly connected to a spiral blade.

[0015] Through the above technical scheme, the spiral mixing assembly is mainly used for lifting and pressurizing the mixture. By cooperating with the conical air guide cover and the detachable lower bottom cover, when the output shaft of the driving motor drives the transmission shaft to rotate, the spiral blades in the rotating state can lift the mixture in the conical air guide cover and the detachable lower bottom cover upward, and spray it out from the jet holes at the top, thereby realizing the circulation mixing of the mixture from bottom to top, thereby ensuring the mixing quality and mixing efficiency.

[0016] Furthermore, the spiral blade is designed as a gyro-shaped structure as a whole, and the mixture inside the circulation guide component can be lifted upward and pressurized through the rotation of the spiral blade.

[0017] The above technical solution can effectively prevent various raw materials from settling at the bottom of the detachable lower bottom cover.

[0018] Furthermore, the raw material adding component includes a sealing cover installed and fixed on the feed port, the middle part of the sealing cover is fixedly connected to the main valve body, the main valve body is provided with a stepped hole, the bottom of the stepped hole is provided with two injection holes, a valve stem is slidably installed in the stepped hole, a return spring is sleeved on the outer wall of the valve stem, the bottom end of the valve stem is fixedly connected to the sealing valve cover, a sealing gasket is installed on the top of the sealing valve cover, and the top of the valve stem is threadedly connected to an adjusting nut.

[0019] Through the above technical scheme, when adding raw materials, the raw material delivery pipeline can be connected to the water inlet of the main valve body, and the pressurized raw materials can enter the stepped hole. Since the raw material delivery pressure is relatively large, the sealing valve cover can be pushed downward. At this time, the raw materials in the stepped hole will flow into the bottom of the main valve body through the two injection holes, and finally injected into the manifold. When the raw materials are added, under the elastic reverse thrust of the reset spring, the sealing valve cover will be driven to block the bottom outlet of the main valve body, thereby realizing the automatic sealing of the raw material adding component.

[0020] Furthermore, the flow mixing assembly includes an outer cylinder body slidably mounted on the inner wall of the mixing tank, and an upper leakage plate and a lower leakage plate are fixedly connected to the top and the middle of the inner wall of the outer cylinder body respectively, and a plurality of evenly distributed leakage holes are provided on the upper leakage plate and the lower leakage plate, and a plurality of evenly distributed handles are fixedly connected to the periphery of the top of the upper leakage plate.

[0021] Through the above technical scheme, the flow mixing component is mainly used for fully mixing and dispersing various raw materials. The raw materials just injected and the raw materials in the circulation process will pass through the upper leakage plate and the lower leakage plate from top to bottom in turn. Since the upper leakage plate and the lower leakage plate are provided with a plurality of evenly distributed leakage holes, the various raw materials can be fully dispersed in the process, and a better mixing effect can be further achieved. In addition, a plurality of handles are fixedly connected to the top side of the upper leakage plate, so that the flow mixing component can be conveniently disassembled, replaced, cleaned and maintained.

[0022] Furthermore, a plurality of evenly distributed fixing ears are fixedly connected to the peripheral side of the outer wall of the mixing tank.

[0023] Through the above technical solution, by providing a plurality of fixing ears, the mixing device can be quickly installed and fixed.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention divides the internal space of the mixing tank into two areas by designing a conical flow guide cover. Driven by the spiral mixing component, the spiral mixing component can lift and pressurize the mixture entering the conical flow guide cover and the detachable lower bottom cover, and finally spray it outward evenly from multiple jet holes on the side of the fixed cover, thereby realizing the circulation mixing of various raw materials from bottom to top, which not only ensures the mixing efficiency, but also ensures the quality of the output; (2) The present invention designs a spiral blade with a gyro-shaped structure, so that the mixture inside the circulation flow guide component can be lifted and pressurized during the rotation process, thereby effectively avoiding the precipitation of various raw materials at the bottom of the detachable lower bottom cover; (3) The present invention designs a flow mixing component, so that the raw materials just injected and the raw materials in the circulation process will pass through the upper leakage plate and the lower leakage plate from top to bottom in turn. Since the upper leakage plate and the lower leakage plate are both provided with multiple evenly distributed leakage holes, the various raw materials can be fully dispersed in the process, and further achieve a better mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a first perspective structural diagram of the present invention; Figure 2 It is a second viewing angle structural diagram of the present invention; Figure 3 It is a front view of the present invention; Figure 4 yes Figure 3 Middle AA section view; Figure 5 It is a right side view of the present invention; Figure 6 yes Figure 5 Middle BB section view; Figure 7 yes Figure 4 A partial enlarged view of the middle A; Figure 8 yes Figure 6 A partial enlarged view of point B in the middle; Fig. 9 It is the internal structure diagram of the main body of the device of the present invention; Fig.10 It is a front view of the main body of the device of the present invention; Fig.11 yes Fig.10 Middle CC section view; Fig.12 It is a structural schematic diagram of the circulation guide assembly of the present invention; Fig.13 is a schematic structural diagram of a flow mixing assembly of the present invention from a first perspective; Fig.14 is a schematic structural diagram of the flow mixing assembly of the present invention from a second viewing angle; Fig.15 It is a three-dimensional cross-sectional view of the flow mixing assembly of the present invention.

[0026] Figure numerals: 1. device body; 101. mixing tank; 102. cover; 103. feed port; 104. observation window; 105. fixed support; 106. pressure relief valve; 107. threaded column; 2. detachable bottom cover; 3. discharge solenoid valve; 4. circulation guide assembly; 401. conical guide cover; 402. confluence hole; 403. fixed cover; 404. jet hole; 405. connection seat; 5. pre-mixing assembly; 501. confluence cover; 502. threaded mounting seat; 503. water leakage hole; 6. spiral mixing 1. Assemblies; 601. Drive motor; 602. Transmission shaft; 603. Spiral blades; 7. Pre-mixing rack; 8. Raw material adding assembly; 801. Sealing cover; 802. Main valve body; 803. Step hole; 804. Injection hole; 805. Valve stem; 806. Return spring; 807. Sealing valve cover; 808. Sealing gasket; 809. Adjusting nut; 9. Flow mixing assembly; 901. Outer cylinder; 902. Upper leakage plate; 903. Lower leakage plate; 904. Leakage hole; 905. Handle; 10. Fixing ear. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1-Figure 15 As shown, a raw material mixing device for preparing para-benzoquinone in this embodiment includes a device body 1, and the device body 1 includes a mixing tank 101. A cover body 102 is installed on the top of the mixing tank 101. Feed ports 103 are provided on both sides of the top of the cover body 102, and an observation window 104 is provided at the front end of the top of the cover body 102. A fixed support 105 is fixedly connected to the center of the top of the cover body 102, and a pressure relief valve 106 is installed at the rear end of the top of the cover body 102. The pressure relief valve 106 can select a mechanical valve or a solenoid valve according to actual needs. A plurality of evenly distributed threaded columns 107 are fixedly connected to the peripheral side of the bottom of the mixing tank 101. The feed ports 103 on both sides of the top of the cover body 102 can be used to add different raw materials. The observation window 104 at the front end can facilitate the operator to observe the processing status inside the mixing tank 101, and the pressure relief valve 106 at the rear end can realize automatic pressure relief when the pressure in the tank is too high.

[0029] A detachable lower bottom cover 2 is fixedly installed at the bottom of the device body 1, and a discharge solenoid valve 3 is installed at the bottom center of the detachable lower bottom cover 2; by providing the detachable lower bottom cover 2 and the discharge solenoid valve 3, it is convenient to fully discharge the material and also convenient to control the discharge of the material.

[0030] Furthermore, in this embodiment, the detachable lower bottom cover 2 is designed as a funnel-shaped structure, and the detachable lower bottom cover 2 is sleeved on multiple threaded columns 107 and fastened and fixed by multiple nuts, which can not only achieve stable connection and fixation, but also facilitate disassembly for later inspection and maintenance.

[0031] For the circulation guide component 4, refer to Figure 4-Figure 12The bottom of the center of the mixing tank 101 is fixedly connected with a circulation guide component 4, which includes a conical guide cover 401 fixed to the bottom of the inner wall of the mixing tank 101, and a plurality of evenly distributed confluence holes 402 are opened around the bottom of the conical guide cover 401. A fixed cover 403 is fixedly connected to the top of the conical guide cover 401, and a plurality of evenly distributed jet holes 404 are opened around the fixed cover 403. A connecting seat 405 is provided at the center of the top of the fixed cover 403. By designing the conical guide cover 401, the internal space of the mixing tank 101 can be divided into two areas. The raw materials just added will enter the bottom of the mixing tank 101, and then pass through the conical guide cover 401. The multiple confluence holes 402 on the bottom side of the conical flow guide cover 401 enter the conical flow guide cover 401 and the detachable lower bottom cover 2. In the actual working process, as the spiral mixing component 6 is driven, the spiral mixing component 6 can lift and pressurize the mixture entering the conical flow guide cover 401 and the detachable lower bottom cover 2, and finally spray it outward evenly from the multiple jet holes 404 on the side of the fixed cover 403, thereby realizing the circulation mixing of various raw materials from bottom to top, effectively avoiding the uneven mixing of multiple raw materials, and also avoiding the sedimentation at the bottom of the tank, which not only ensures the mixing efficiency, but also ensures the quality of the output.

[0032] For premix assembly 5, refer to Figure 4-Figure 9 The top of the circulation guide component 4 is threadedly connected with a pre-mixing component 5, and the pre-mixing component 5 includes a funnel-shaped collector 501. A threaded mounting seat 502 is provided at the bottom center of the collector 501, and the threaded mounting seat 502 is threadedly connected to the top of the circulation guide component 4. A plurality of evenly distributed leakage holes 503 are provided on the circumferential side of the bottom of the collector 501. The pre-mixing component 5 is used for pre-mixing of various raw materials. The raw materials added by the raw material adding component 8 will first enter the collector 501. With the start-up of the spiral mixing component 6, the spiral mixing component 6 will drive the pre-mixing frame 7 to rotate, so that the various raw materials entering the collector 501 can be pre-mixed and mixed. With the continuous addition of raw materials, the various pre-mixed raw materials will overflow to the bottom of the mixing tank 101 through the top opening of the collector 501. When the raw material filling is completed, the mixture that fails to overflow from the top opening of the collector 501 will drip to the bottom of the mixing tank 101 through the multiple leakage holes 503 at the bottom of the collector 501.

[0033] For the spiral mixing element 6, refer to Figure 4-Figure 7A spiral mixing component 6 matching the circulation guide component 4 is installed in the mixing tank 101; the spiral mixing component 6 includes a driving motor 601 fixedly installed at the top center of the device body 1, and the bottom end of the output shaft of the driving motor 601 is fixedly connected to a transmission shaft 602, and the bottom of the outer wall of the transmission shaft 602 is fixedly connected to a spiral blade 603. The spiral mixing component 6 is mainly used for lifting and pressurizing the mixture. By cooperating with the conical guide cover 401 and the detachable lower bottom cover 2, when the output shaft of the driving motor 601 drives the transmission shaft 602 to rotate, the spiral blade 603 in the rotating state can lift the mixture in the conical guide cover 401 and the detachable lower bottom cover 2 upward, and make it spray out from the top jet hole 404, thereby realizing the circulation mixing of the mixture from bottom to top, thereby ensuring the mixing quality and mixing efficiency.

[0034] Furthermore, in this embodiment, the spiral blade 603 is designed as a gyro-shaped structure as a whole. The rotation of the spiral blade 603 can lift and pressurize the mixture inside the circulation guide component 4, thereby effectively preventing various raw materials from settling at the bottom of the detachable lower cover 2.

[0035] In this embodiment, a pre-mixing frame 7 matching the pre-mixing component 5 is further fixedly mounted on the spiral mixing component 6 .

[0036] For raw material addition component 8, refer to Figure 8 , two groups of raw material adding components 8 are fixedly installed on the cover body 102; the raw material adding components 8 include a sealing cover 801 fixedly installed on the feed port 103, a main valve body 802 is fixedly connected to the middle of the sealing cover 801, a stepped hole 803 is provided in the main valve body 802, two injection holes 804 are provided at the bottom of the stepped hole 803, a valve stem 805 is slidably installed in the stepped hole 803, a return spring 806 is sleeved on the outer wall of the valve stem 805, a sealing valve cover 807 is fixedly connected to the bottom end of the valve stem 805, a sealing gasket 808 is installed on the top of the sealing valve cover 807, and the top of the valve stem 805 is threadedly connected to the It is connected with an adjusting nut 809. When adding raw materials, the raw material delivery pipeline can be connected to the water inlet of the main valve body 802, and the pressurized raw materials can enter the stepped hole 803. Since the raw material delivery pressure is relatively large, the sealing valve cover 807 can be pushed to move downward. At this time, the raw materials in the stepped hole 803 will flow into the bottom of the main valve body 802 through the two injection holes 804, and finally injected into the manifold 501. When the raw materials are added, under the elastic reverse thrust of the reset spring 806, the sealing valve cover 807 will be driven to block the bottom outlet of the main valve body 802, thereby realizing the automatic sealing of the raw material adding component 8.

[0037] Regarding the flow mixing assembly 9, refer to Figure 11-Figure 15A detachable flow mixing assembly 9 is also installed inside the mixing tank 101. The flow mixing assembly 9 includes an outer cylinder 901 slidably installed on the inner wall of the mixing tank 101. The top and middle of the inner wall of the outer cylinder 901 are respectively fixedly connected with an upper leakage plate 902 and a lower leakage plate 903. The upper leakage plate 902 and the lower leakage plate 903 are both provided with a plurality of evenly distributed leakage holes 904. The top peripheral side of the upper leakage plate 902 is fixedly connected with a plurality of evenly distributed handles 905. The flow mixing assembly 9 is mainly used for fully mixing various raw materials. The raw materials just injected and the raw materials in the circulation process will pass through the upper leakage plate 902 and the lower leakage plate 903 from top to bottom in turn. Since the upper leakage plate 902 and the lower leakage plate 903 are provided with a plurality of evenly distributed leakage holes 904, various raw materials can be fully dispersed in the process, and a better mixing effect can be further achieved. In addition, a plurality of handles 905 are fixedly connected to the top side of the upper leakage plate 902, so that the flow mixing component 9 can be conveniently disassembled, replaced, cleaned and maintained.

[0038] In this embodiment, a plurality of evenly distributed fixing ears 10 are fixedly connected to the peripheral side of the outer wall of the mixing tank 101. By providing a plurality of fixing ears 10, the mixing device can be quickly installed and fixed.

[0039] The working principle of this embodiment is as follows: when adding raw materials, the raw material delivery pipeline can be connected to the water inlet of the main valve body 802, and the pressurized raw materials can enter the stepped hole 803. Since the raw material delivery pressure is relatively large, the sealing valve cover 807 can be pushed downward. At this time, the raw materials in the stepped hole 803 will flow into the bottom of the main valve body 802 through the two injection holes 804, and finally injected into the manifold 501; As the spiral mixing component 6 is started, the spiral mixing component 6 drives the pre-mixing frame 7 to rotate, so that various raw materials entering the collector 501 can be pre-mixed and mixed. The pre-mixed raw materials will overflow to the bottom of the mixing tank 101 through the top opening of the collector 501. By cooperating with the conical guide cover 401 and the detachable lower bottom cover 2, when the output shaft of the driving motor 601 drives the transmission shaft 602 to rotate, the spiral blades 603 in the rotating state can lift the mixture in the conical guide cover 401 and the detachable lower bottom cover 2 upward and make it spray outward from the spray hole 404 at the top, thereby realizing the circulation mixing of the mixture from bottom to top; A detachable flow mixing assembly 9 is also installed inside the mixing tank 101. The raw materials just injected and the raw materials in the circulation process will pass through the upper leakage plate 902 and the lower leakage plate 903 from top to bottom in sequence. Since a plurality of evenly distributed leakage holes 904 are provided on the upper leakage plate 902 and the lower leakage plate 903, various raw materials can be fully dispersed in the process, and a better mixing effect is also further achieved. A discharge solenoid valve 3 is installed at the bottom center of the detachable lower bottom cover 2. When the mixing process is completed, the discharge solenoid valve 3 can be opened, and the output in the mixing tank 101 can be discharged normally.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A raw material mixing device for preparing p-benzoquinone, comprising a device body (1), wherein the device body (1) comprises a mixing tank (101), and a cover (102) is installed on the top of the mixing tank (101), characterized in that: A detachable lower bottom cover (2) is fixedly mounted on the bottom of the device body (1), and a discharge solenoid valve (3) is mounted at the center of the bottom of the detachable lower bottom cover (2); A circulation guide component (4) is fixedly connected to the bottom of the center of the mixing tank (101), a pre-mixing component (5) is threadedly connected to the top of the circulation guide component (4), and a spiral mixing component (6) matching the circulation guide component (4) is installed in the mixing tank (101); A pre-mixing frame (7) matching the pre-mixing component (5) is also fixedly mounted on the spiral mixing component (6), and two sets of raw material adding components (8) are also fixedly mounted on the cover body (102); A detachable flow mixing assembly (9) is also installed inside the mixing tank (101).

2. The raw material mixing device for preparing p-benzoquinone according to claim 1, characterized in that: Both sides of the top of the cover body (102) are provided with feed ports (103), the front end of the top of the cover body (102) is provided with an observation window (104), the center of the top of the cover body (102) is fixedly connected to a fixed support (105), the rear end of the top of the cover body (102) is installed with a pressure relief valve (106), and the bottom circumference of the mixing tank (101) is fixedly connected to a plurality of evenly distributed threaded columns (107).

3. The raw material mixing device for preparing p-benzoquinone according to claim 2, characterized in that: The detachable lower bottom cover (2) is designed to be funnel-shaped, and the detachable lower bottom cover (2) is sleeved on a plurality of threaded columns (107) and is locked and fixed by a plurality of nuts.

4. The raw material mixing device for preparing p-benzoquinone according to claim 1, characterized in that: The circulation guide assembly (4) comprises a conical guide cover (401) fixed to the bottom of the inner wall of the mixing tank (101), a plurality of evenly distributed confluence holes (402) are provided on the circumference of the bottom of the conical guide cover (401), a fixed cover (403) is fixedly connected to the top of the conical guide cover (401), a plurality of evenly distributed jet holes (404) are provided on the circumference of the fixed cover (403), and a connecting seat (405) is provided at the center of the top of the fixed cover (403).

5. The raw material mixing device for preparing p-benzoquinone according to claim 1, characterized in that: The premixing assembly (5) comprises a funnel-shaped collecting cover (501), a threaded mounting seat (502) is provided at the center of the bottom of the collecting cover (501), the threaded mounting seat (502) is threadedly connected to the top of the circulation guide assembly (4), and a plurality of evenly distributed water leakage holes (503) are provided around the bottom of the collecting cover (501).

6. The raw material mixing device for preparing p-benzoquinone according to claim 1, characterized in that: The spiral mixing assembly (6) comprises a driving motor (601) fixedly mounted at the top center of the device body (1); the bottom end of the output shaft of the driving motor (601) is fixedly connected to a transmission shaft (602); and the bottom of the outer wall of the transmission shaft (602) is fixedly connected to a spiral blade (603).

7. The raw material mixing device for preparing p-benzoquinone according to claim 6, characterized in that: The spiral blade (603) is designed as a gyro-shaped structure as a whole, and the mixture inside the circulation guide component (4) can be lifted upward and pressurized through the rotation of the spiral blade (603).

8. The raw material mixing device for preparing p-benzoquinone according to claim 2, characterized in that: The raw material adding component (8) comprises a sealing cover (801) fixedly mounted on the feed port (103), the middle part of the sealing cover (801) being fixedly connected to a main valve body (802), the main valve body (802) being provided with a stepped hole (803), the bottom of the stepped hole (803) being provided with two injection holes (804), a valve stem (805) being slidably mounted in the stepped hole (803), a return spring (806) being sleeved on the outer wall of the valve stem (805), the bottom end of the valve stem (805) being fixedly connected to a sealing valve cover (807), the top of the sealing valve cover (807) being provided with a sealing gasket (808), and the top of the valve stem (805) being threadedly connected to an adjusting nut (809).

9. The raw material mixing device for preparing p-benzoquinone according to claim 1, characterized in that: The flow mixing assembly (9) comprises an outer cylinder (901) slidably mounted on the inner wall of a mixing tank (101), an upper leakage plate (902) and a lower leakage plate (903) being fixedly connected to the top and middle of the inner wall of the outer cylinder (901), respectively, a plurality of evenly distributed leakage holes (904) being provided on the upper leakage plate (902) and the lower leakage plate (903), and a plurality of evenly distributed handles (905) being fixedly connected to the circumference of the top of the upper leakage plate (902).

10. The raw material mixing device for preparing p-benzoquinone according to claim 1, characterized in that: A plurality of evenly distributed fixing ears (10) are fixedly connected to the peripheral side of the outer wall of the mixing tank (101).

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