Waste mineral oil processing raw material preheating device

Abstract

The utility model relates to the technical field of preheating devices, and discloses a waste mineral oil processing raw material preheating device which comprises a preheating bin, a top cover arranged on the top surface of the preheating bin, a PLC (Programmable Logic Controller) arranged on one side of the preheating bin, and a heating assembly used for heating waste mineral oil, the heating assembly comprises two fixing holes, the two fixing holes are formed in the top face of the top cover, a stainless steel pipe sleeve is arranged on the inner circle wall face of the preheating bin, and the preheating bin, the top cover, the fixing holes, the electrode disc, the stainless steel pipe sleeve, fins, a resistance wire and heat conduction ceramic powder are used in cooperation. The effect of heating waste mineral oil is achieved, the spiral stainless steel pipe sleeve is matched with the fins, the heat exchange area is increased, the temperature uniformity error and energy consumption are reduced, meanwhile, the detachable design facilitates cleaning, maintenance, replacement and other operations, the problems of scale deposition and cleaning are solved, the maintenance cost is reduced, and the use flexibility is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to preheating device technical field especially relates to a kind of waste mineral oil processing raw material preheating device. BACKGROUND

[0002] Waste mineral oil processing raw material preheating device is used to heat raw material before waste mineral oil (such as waste lubricating oil, hydraulic oil, cutting fluid, etc.) enters processing link (such as distillation, cracking, filtration), its core function is to reduce the viscosity of waste oil by heating, improve fluidity, and remove part of moisture or light impurities, provide suitable temperature conditions for subsequent processing (such as separation, catalytic reaction), common preheating mode includes heat exchanger, electric heating, steam heating, etc.

[0003] The existing waste mineral oil pre-treatment heat exchange device (announcement number: CN207922540U) has at least the following disadvantages:

[0004] In the above patent, the heater is combined with the heat exchange plate, and the liquid circulation system of the heat conversion box is used to realize multi-path heat transfer. However, the heater is fixed on the top of the pre-treatment box, which can cause local overheating or uneven temperature distribution, indirectly increasing energy consumption. At the same time, the heat exchange plate is welded and fixed with the pipe, which is easy to accumulate dirt on the surface and difficult to clean thoroughly, so it is necessary to propose a waste mineral oil processing raw material preheating device to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a waste mineral oil processing raw material preheating device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A waste mineral oil processing raw material preheating device, comprising a preheating bin, a top cover is arranged on the top surface of the preheating bin, a PLC controller is arranged on one side of the preheating bin, and further comprising: a heating assembly for heating waste mineral oil, the heating assembly comprises: two fixing holes, the two fixing holes are arranged on the top surface of the top cover, a stainless steel pipe sleeve is arranged on the inner circular wall surface of the preheating bin, an electrode disc is fixedly installed at the end of the stainless steel pipe sleeve, a plurality of fins are arranged on the inner circular wall surface of the preheating bin, a plurality of first circular through holes are arranged on one side of the fins, the first circular through holes are fixedly sleeved with the stainless steel pipe sleeve, an electric resistance wire is movably sleeved on the inner circular wall surface of the stainless steel pipe sleeve, heat-conducting ceramic powder is filled between the stainless steel pipe sleeve and the electric resistance wire, the electric resistance wire is connected with the connecting electrode of the electrode disc, and a disassembly assembly is arranged on the preheating bin.

[0008] As a further scheme of the utility model, the dismounting assembly comprises: a plurality of first support plates, the first support plates are fixedly installed on the inner circular wall surface of the preheating bin, a fixing groove is formed in the top surface of the first support plate, a support frame is movably sleeved in the fixing groove, the support frame is fixedly sleeved with the stainless steel pipe sleeve, a threaded hole is formed in the outer circular wall surface of the electrode disc, and two nuts are threadedly connected with the outer circular wall surface of the electrode disc.

[0009] As a further scheme of the utility model, a plurality of first threaded holes are formed in the top surface of the top cover, a plurality of fixing plates are fixedly installed on the outer circular wall surface of the preheating bin, second threaded holes are formed in the top surface of the fixing plates, threaded columns are threadedly connected with the inner circular wall surface of the second threaded holes, and the threaded columns are threadedly connected with the first threaded holes.

[0010] As a further scheme of the utility model, a plurality of second circular through holes are formed in the outer circular wall surface of the preheating bin, temperature detection sensors are fixedly sleeved with the inner circular wall surface of the second circular through holes, a PLC controller is arranged on one side of the preheating bin, and the temperature detection sensors and the connecting electrodes of the electrode disc are electrically connected with the PLC controller.

[0011] As a further scheme of the utility model, a second support plate is fixedly installed on the outer circular wall surface of the preheating bin, and the second support plate is fixedly installed with the PLC controller.

[0012] As a further scheme of the utility model, third circular through holes are formed in the top surface and the bottom surface of the preheating bin, an oil inlet pipe and an oil outlet pipe are fixedly sleeved with the inner circular wall surfaces of the third circular through holes located at the top and the bottom respectively.

[0013] As a further scheme of the utility model, the surface of the fin is sprayed with a silicon carbide coating.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] Through the cooperation of the preheating bin, the top cover, the fixing hole, the electrode disc, the stainless steel pipe sleeve, the fin, the resistance wire and the heat-conducting ceramic powder, the effect of heating waste mineral oil is achieved, the spiral stainless steel pipe sleeve cooperates with the fin to improve the heat exchange area, reduce the temperature uniformity error and energy consumption, and the detachable design facilitates cleaning, maintenance and replacement and the like, solves the problems of scale accumulation and cleaning, reduces the maintenance cost and improves the use flexibility. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of overall structure schematic view of waste mineral oil processing raw material preheating device;

[0017] Figure 2 A preheating bin structure schematic view of a waste mineral oil processing raw material preheating device is provided in the utility model.

[0018] Figure 3 A top cover structure schematic view of a waste mineral oil processing raw material preheating device is provided in the utility model.

[0019] Figure 4 A Figure 2 A partial structure schematic view of the middle A is provided.

[0020] Figure 5 A Figure 3 A partial structure schematic view of the middle B is provided.

[0021] In the drawing: 1, preheating bin; 2, top cover; 3, fixed hole; 4, electrode disc; 5, stainless steel pipe sleeve; 6, fin; 7, resistance wire; 8, heat-conducting ceramic powder; 9, nut; 10, first support plate; 11, fixed groove; 12, support frame; 13, temperature detection sensor; 14, fixed plate; 15, threaded column; 16, first threaded hole; 17, second support plate; 18, oil inlet pipe; 19, oil outlet pipe. Specific implementation

[0022] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0023] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" is the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Refer to Figures 1-5A preheating device for waste mineral oil processing raw materials includes a preheating chamber 1, a top cover 2 on the top surface of the preheating chamber 1, a PLC controller on one side of the preheating chamber 1, and a heating component for heating the waste mineral oil. The heating component includes two fixing holes 3, both of which are located on the top surface of the top cover 2. A stainless steel sleeve 5 is provided on the inner circular wall of the preheating chamber 1, and an electrode plate 4 is fixedly installed at the end of the stainless steel sleeve 5. The electrode plate 4 is generally the flange part of an electric heater in the prior art, excluding the heating tube, heating wire and the filler between them. Several fins 6 are provided on the inner circular wall of the preheating chamber 1, and several first circular through holes are opened on one side of the fins 6. The first circular through holes are fixedly sleeved with the stainless steel sleeve 5. A resistance wire 7 is movably sleeved on the inner circular wall of the stainless steel sleeve 5. Thermally conductive ceramic powder 8 is filled between the stainless steel sleeve 5 and the resistance wire 7. The resistance wire 7 is connected to the connecting electrode of the electrode plate 4. A disassembly component is provided for disassembling the stainless steel sleeve 5.

[0026] In use, the preheating chamber 1 is set up so that when the user needs to preheat the waste mineral oil, the waste mineral oil is separated by a solid-liquid separator and then transported to the inside of the oil inlet pipe 18 by a transfer pump. The oil temperature is detected by three temperature detection sensors 13 in the upper, middle and lower layers. The electrodes of the electrode plate 4 are energized according to the preset threshold, which in turn energizes the resistance wire 7 to heat the oil. The heat generated is conducted by the fins 6. The stainless steel tube sleeve 5 is spirally distributed. The combination of the two significantly increases the heat exchange area, reduces temperature uniformity error, and reduces energy consumption (avoiding energy waste caused by local overheating).

[0027] In this embodiment, the disassembly assembly includes: several first support plates 10, all of which are fixedly installed on the inner circular wall of the preheating chamber 1. A fixing groove 11 is provided on the top surface of the first support plate 10. A support frame 12 is movably sleeved inside the fixing groove 11. The support frame 12 is fixedly sleeved with the stainless steel tube sleeve 5. A thread is provided on the outer circular wall of the electrode disk 4. Two nuts 9 are threadedly connected to the outer circular wall of the electrode disk 4. Several first threaded holes 16 are provided on the top surface of the top cover 2. Several fixing plates 14 are fixedly installed on the outer circular wall of the preheating chamber 1. A second threaded hole is provided on the top surface of the fixing plate 14. A threaded post 15 is threadedly connected to the inner circular wall of the second threaded hole. The threaded post 15 is threadedly connected to the first threaded hole 16.

[0028] In use, when the stainless steel pipe sleeve 5 needs to be disassembled, replaced or repaired, the nut 9 is unscrewed from the outside of the electrode disc 4, the threaded column 15 is unscrewed from the inside of the first threaded hole 16, the fixing of the top cover 2 is released, the top cover 2 is disassembled from the top surface of the preheating bin 1, the lifting appliance is used to lift the preheating bin 1, the externally connected support frame 12 is moved out from the inside of the fixing groove 11, and the stainless steel pipe sleeve 5 can be disassembled from the inside of the preheating bin 1, so that the convenient disassembly is realized, and the cleaning, repair and replacement are facilitated.

[0029] In the embodiment, the outer circular wall surface of the preheating bin 1 is provided with a plurality of second circular through holes, the inner circular wall surface of the second circular through hole is fixedly sleeved with a temperature detection sensor 13, one side of the preheating bin 1 is provided with a PLC controller, the connecting electrode of the temperature detection sensor 13 and the electrode disc 4 is electrically connected with the PLC controller, the outer circular wall surface of the preheating bin 1 is fixedly installed with a second support plate 17, the second support plate 17 is fixedly installed with the PLC controller, the top surface and the bottom surface of the preheating bin 1 are respectively provided with third circular through holes, the inner circular wall surface of the third circular through hole located at the top and the bottom is respectively fixedly sleeved with an oil inlet pipe 18 and an oil outlet pipe 19, and the surface of the fin 6 is sprayed with a silicon carbide coating.

[0030] In use, the surface of the fin 6 is sprayed with a silicon carbide coating, which can resist high temperature and resist oil stain adhesion. In production, the spacing of the stainless steel pipe sleeve 5 can be adjusted according to the viscosity of the oil product, such as 50mm for high-viscosity oil and 30mm for low-viscosity oil. The stainless steel pipe sleeve 5 is made of corrosion-resistant stainless steel, which effectively improves the service life.

[0031] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: through the preheating bin 1, when the user needs to preheat the waste mineral oil, the waste mineral oil is separated through the solid-liquid separator and then is delivered to the inside of the oil inlet pipe 18 through the delivery pump, the oil temperature is detected through the three temperature detection sensors 13 arranged on the upper layer, the middle layer and the lower layer, the electrodes of the electrode disc 4 are electrified according to the pre-set threshold value, and then the resistance wire 7 is electrified to heat the oil, the generated heat is conducted through the fins 6, the stainless steel pipe sleeve 5 is distributed in a spiral shape, and the cooperation of the two can significantly improve the heat exchange area, reduce the temperature uniformity error, reduce the energy consumption (avoid energy waste caused by local overheating), the surface of the fin 6 is sprayed with a silicon carbide coating, which can resist high temperature and oil stain adhesion, during production, the spacing of the stainless steel pipe sleeve 5 can be adjusted according to the oil viscosity, for example, the spacing of high-viscosity oil is 50mm, and the spacing of low-viscosity oil is 30mm, the stainless steel pipe sleeve 5 adopts a corrosion-resistant 304 stainless steel sheath, effectively improving the service life, when the stainless steel pipe sleeve 5 needs to be disassembled, replaced or repaired, the nut 9 is unscrewed from the outside of the electrode disc 4, and the threaded column 15 is unscrewed from the inside of the first threaded hole 16, the fixing of the top cover 2 is released, the top cover 2 is disassembled from the top surface of the preheating bin 1, the hoist is used to lift the preheating bin 1, the external connected support frame 12 is moved out from the fixed groove 11, and the stainless steel pipe sleeve 5 can be disassembled from the inside of the preheating bin 1, convenient disassembly, convenient cleaning, maintenance and replacement, and the effect of heating the waste mineral oil is achieved, the spiral stainless steel pipe sleeve 5 cooperates with the fin 6 to improve the heat exchange area, reduce the temperature uniformity error and energy consumption, and the detachable design solves the problems of fouling and cleaning, reduces the maintenance cost and improves the use flexibility.

[0032] The basic principles and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model.

Claims

1. A preheating device for waste mineral oil processing raw materials, comprising a preheating chamber (1), wherein a top cover (2) is provided on the top surface of the preheating chamber (1), and a PLC controller is provided on one side of the preheating chamber (1), characterized in that, Also includes: A heating assembly is used to heat waste mineral oil. The heating assembly includes two fixing holes (3), both of which are opened on the top surface of the top cover (2). A stainless steel tube sleeve (5) is provided on the inner circular wall of the preheating chamber (1). An electrode disk (4) is fixedly installed at the end of the stainless steel tube sleeve (5). A number of fins (6) are provided on the inner circular wall of the preheating chamber (1). A number of first circular through holes are opened on one side of the fins (6). The first circular through holes are fixedly sleeved with the stainless steel tube sleeve (5). A resistance wire (7) is movably sleeved on the inner circular wall of the stainless steel tube sleeve (5). Thermally conductive ceramic powder (8) is filled between the stainless steel tube sleeve (5) and the resistance wire (7). The resistance wire (7) is connected to the connecting electrode of the electrode disk (4). Disassembly assembly, which is used to disassemble the stainless steel sleeve (5).

2. The waste mineral oil processing raw material preheating device according to claim 1, characterized in that, The disassembly assembly includes: several first support plates (10), which are fixedly installed on the inner circular wall of the preheating chamber (1). The top surface of the first support plate (10) is provided with a fixing groove (11). A support frame (12) is movably sleeved inside the fixing groove (11). The support frame (12) is fixedly sleeved with the stainless steel tube sleeve (5). The outer circular wall of the electrode disk (4) is provided with a thread, and two nuts (9) are threadedly connected to the outer circular wall of the electrode disk (4).

3. The waste mineral oil processing raw material preheating device according to claim 1, characterized in that, The top surface of the top cover (2) is provided with a number of first threaded holes (16), and the outer circular wall of the preheating chamber (1) is fixedly installed with a number of fixing plates (14). The top surface of the fixing plate (14) is provided with a second threaded hole, and the inner circular wall of the second threaded hole is threadedly connected with a threaded post (15). The threaded post (15) is threadedly connected to the first threaded hole (16).

4. The waste mineral oil processing raw material preheating device according to claim 1, characterized in that, The preheating chamber (1) has several second circular through holes on its outer circular wall surface. A temperature detection sensor (13) is fixedly sleeved on the inner circular wall surface of the second circular through hole. A PLC controller is provided on one side of the preheating chamber (1). The temperature detection sensor (13) and the connecting electrodes of the electrode disk (4) are electrically connected to the PLC controller.

5. The waste mineral oil processing raw material preheating device according to claim 1, characterized in that, The preheating chamber (1) has a second support plate (17) fixedly installed on its outer circular wall surface, and the second support plate (17) is fixedly installed with the PLC controller.

6. The waste mineral oil processing raw material preheating device according to claim 1, characterized in that, The preheating chamber (1) has a third circular through hole on its top and bottom surfaces respectively. The inner circular walls of the third circular through holes located at the top and bottom are respectively fixedly fitted with an oil inlet pipe (18) and an oil outlet pipe (19).

7. The waste mineral oil processing raw material preheating device according to claim 1, characterized in that, The surface of the fin (6) is coated with a silicon carbide coating.

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