Mixing device with waste heat recovery function for friction material processing

Abstract

The invention discloses a friction material processing mixing device with a waste heat recovery function, and relates to the technical field of mixing devices.According to the scheme, the friction material processing mixing device comprises a mixing tank used for coagulation and friction materials and a storage tank used for storing mixed material raw materials, and a first waste heat utilization mechanism is installed between the outer surface of the mixing tank and the outer surface of the storage tank; the first waste heat utilization mechanism and the second waste heat utilization mechanism are arranged to form an internal and external dual heat exchange structure, the heat exchange area is greatly increased, the heat resistance is reduced, friction materials in the mixing tank and raw materials in the material storage tank are fully stirred in cooperation with the stirring mechanisms, and the friction materials in the mixing tank and the raw materials in the material storage tank are fully stirred. The problems of insufficient heat transfer and non-uniform raw material preheating in the prior art are effectively solved, efficient recovery of waste heat in the mixing process of the mixing tank is realized, the raw materials in the storage tank can be uniformly preheated, and the energy utilization rate and the mixing quality of friction materials are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mixing devices, in particular to a mixing device with waste heat recovery function for processing friction materials. BACKGROUND

[0002] The friction material is a component material applied to power machinery and used for braking and transmission functions by friction, mainly including brake pads and clutch pads, and the raw material is mainly a high-molecular ternary composite material, that is, a high-molecular compound is used as a binder, inorganic or organic fibers are used as reinforcing components, and fillers are used as friction performance adjusting agents or matching agents.

[0003] The technical scheme above effectively controls the temperature in the mixing box, and at the same time, the heat brought out is brought into the heat exchange cavity for preheating of the unmixed raw materials, but in use, the single spiral water pipe + box wall type heat exchange cavity has limited heat exchange area, large thermal resistance and insufficient heat transfer, and the raw materials are not uniformly preheated; the storage tank is only heated by the box wall heat exchange cavity, and the internal raw materials form a temperature gradient, so that the preheating effect is poor. SUMMARY

[0004] In view of the defects of the prior art, the application provides a mixing device with waste heat recovery function for processing friction materials, which solves the problems in the background art.

[0005] To achieve the above object, the application is implemented by the following technical scheme: a mixing device with waste heat recovery function for processing friction materials, comprising a mixing tank for mixing cement and friction materials and a storage tank for storing mixed material raw materials, a first waste heat utilization mechanism is installed between the outer surfaces of the mixing tank and the storage tank, stirring mechanisms are installed in the interiors of the mixing tank and the storage tank, a second waste heat utilization mechanism is installed between the two stirring mechanisms, and a driving mechanism for rotating the two stirring mechanisms is installed at the top of the mixing tank. The stirring mechanism comprises two hollow shafts symmetrically arranged, the two hollow shafts are rotationally connected with the top and bottom of the mixing tank and the storage tank respectively, five connecting rods are sequentially arranged between the two hollow shafts, two adjacent connecting rods are fixedly connected through flanges, two stirring blades are symmetrically fixedly connected to the outer surfaces of the three connecting rods located at the middle and two ends, and spiral blades are fixedly sleeved to the outer surfaces of the remaining two connecting rods located in the mixing tank, so that the friction material in the mixing tank and the raw material in the storage tank can be stirred respectively.

[0006] Preferably, the first waste heat utilization mechanism comprises a heat insulation sleeve, the heat insulation sleeve is sleeved on the outer surfaces of the mixing tank and the storage tank, a spiral heat conduction plate is fixedly connected to the inner portion of the heat insulation sleeve, a liquid inlet pipe and a liquid outlet pipe are symmetrically fixedly connected to one side of the outer surface of the heat insulation sleeve, the liquid inlet pipe located on the mixing tank and the liquid outlet pipe located on the storage tank are communicated, and a first circulating pump is arranged between the liquid outlet pipe located on the mixing tank and the liquid inlet pipe located on the storage tank, so that the raw material can be heated from the outside.

[0007] Preferably, the second waste heat utilization mechanism comprises a first flow channel arranged in the connecting rod, a second flow channel communicated with the first flow channel is arranged in the stirring blade, the first flow channels located at the top and the bottom are communicated with the inner portions of the corresponding hollow shafts, a rotary joint is fixedly connected to one end of the hollow shaft, a first connecting pipe is connected between the two rotary joints located at the top, the two rotary joints located at the bottom are fixedly connected with second connecting pipes, and a second circulating pump is arranged between the two second connecting pipes, so that the raw material can be heated from the inside.

[0008] Preferably, the driving mechanism comprises a support fixedly installed on the top of the mixing tank, a motor is fixedly installed on the support, two first pulleys are fixedly connected to the output shaft of the motor, second pulleys are fixedly connected to the outer surfaces of the hollow shafts located on the two sides, and synchronous belts are sleeved between the first pulleys and the corresponding second pulleys, so that the stirring mechanisms on the two sides can be synchronously driven to operate.

[0009] Preferably, a feeding hopper is fixedly installed on one side of the top of the mixing tank and the storage tank, and a discharging valve is arranged on one side of the bottom of the mixing tank and the storage tank, so that feeding and discharging are facilitated.

[0010] Preferably, a controller is further arranged, and the first waste heat utilization mechanism, the second waste heat utilization mechanism and the driving mechanism are connected with the controller through wires, so that the device can be controlled.

[0011] The application provides a mixing device for processing friction material with waste heat recovery function, which has the following advantages: The mixing device for friction material processing with waste heat recovery function forms inner and outer double heat exchange structures through the first waste heat utilization mechanism and the second waste heat utilization mechanism, greatly increases the heat exchange area and reduces the thermal resistance, and the mixing device fully stirs the friction material in the mixing tank and the raw materials in the storage tank through the stirring mechanism, effectively solves the problems of insufficient heat transfer and uneven preheating of raw materials in the prior art, realizes efficient recovery of waste heat in the mixing process of the mixing tank, can uniformly preheat the raw materials in the storage tank, and improves the energy utilization rate and the mixing quality of the friction material. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is an internal structure schematic view of the mixing tank of the present application; Figure 3 It is an internal structure schematic view of the storage tank of the present application; Figure 4 It is a structure schematic view of the stirring mechanism of the present application; Figure 5 It is a partial structure schematic view of the stirring mechanism of the present application; Figure 6 It is an internal structure schematic view of the connecting rod and the stirring blade of the present application.

[0013] In the figure, 1, mixing tank; 2, storage tank; 3, hollow shaft; 4, connecting rod; 5, stirring blade; 6, spiral blade; 7, heat insulation sleeve; 8, spiral heat conduction plate; 9, liquid inlet pipe; 10, liquid outlet pipe; 11, first circulating pump; 12, first flow channel; 13, second flow channel; 14, rotary joint; 15, first connecting pipe; 16, second connecting pipe; 17, second circulating pump; 18, support; 19, motor; 20, feeding hopper; 21, discharging valve. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0015] Embodiment: as Figures 1 to 6As shown, a kind of mixing device for friction material processing with waste heat recovery function, including the mixing tank 1 for mixing and friction material and the storage tank 2 for storing mixed material raw materials, first waste heat utilization mechanism is installed between the outer surface of mixing tank 1 and storage tank 2, first waste heat utilization mechanism includes heat insulation sleeve 7, heat insulation sleeve 7 is sleeved on the outer surface of mixing tank 1 and storage tank 2, the inside of heat insulation sleeve 7 is fixedly connected with spiral heat conduction plate 8, the outer surface of heat insulation sleeve 7 is fixedly connected with liquid inlet pipe 9 and liquid outlet pipe 10 on one side, liquid inlet pipe 9 located on mixing tank 1 and liquid outlet pipe 10 located on storage tank 2 are communicated, first circulating pump 11 is installed between liquid outlet pipe 9 located on mixing tank 1 and liquid inlet pipe 10 located on storage tank 2.

[0016] In use, heat is generated when each friction material in mixing tank 1 is mixed, at this time, the oil in the corresponding heat insulation sleeve 7 can be heated, and the first circulating pump 11 can drive the oil to flow, thereby recovering the waste heat from the outside of the friction raw materials in the storage tank 2, and the spiral heat conduction plate 8 can make the oil uniformly contact the outer wall of the mixing tank 1 or the storage tank 2, thereby improving the heat exchange effect.

[0017] Mixing tank 1 and storage tank 2 are both internally installed with stirring mechanism, stirring mechanism includes two hollow shafts 3 arranged symmetrically, the two hollow shafts 3 are rotatably connected with the top and bottom of mixing tank 1 and storage tank 2 respectively, five connecting rods 4 are sequentially installed between the two hollow shafts 3, the adjacent two connecting rods 4 are fixedly connected through flanges, the outer surfaces of the three connecting rods 4 located at the middle and both ends are fixedly connected with two stirring blades 5 symmetrically, and the outer surfaces of the remaining two connecting rods 4 located in the mixing tank 1 are fixedly sleeved with spiral blades 6.

[0018] The rotation of the hollow shaft 3 can drive the rotation of the connecting rod 4 and the stirring blade 5, so as to stir the corresponding friction material and friction raw material, thereby improving the mixing and preheating effect, and the spiral blade 6 located in the mixing tank 1 can increase the stirring effect.

[0019] Second waste heat utilization mechanism is installed between the two stirring mechanisms, second waste heat utilization mechanism includes first flow channel 12 opened in connecting rod 4, second flow channel 13 communicated with first flow channel 12 is opened in stirring blade 5, first flow channel 12 located at top and bottom is communicated with the inside of corresponding hollow shaft 3, rotary joint 14 is fixedly connected to one end of hollow shaft 3, first connecting pipe 15 is connected between two rotary joints 14 located at top, second connecting pipe 16 is fixedly connected to two rotary joints 14 located at bottom, and second circulating pump 17 is installed between two second connecting pipes 16.

[0020] In the technical solution, the connecting rod 4 and the stirring rod 5 are both made of metal, having good heat conduction, so that the oil in the flow channel can be heated, and the second circulating pump 17 can drive the corresponding oil circulation to absorb heat from the inside of the friction material and heat from the inside of the friction material, which can further improve the preheating effect.

[0021] The top of the mixing tank 1 is provided with a driving mechanism for rotating the two stirring mechanisms, which comprises a bracket 18 fixedly installed on the top of the mixing tank 1, a motor 19 fixedly installed on the bracket 18, two first pulleys fixedly connected to the output shaft of the motor 19, and two second pulleys fixedly connected to the outer surfaces of the hollow shafts 3 on both sides, and a synchronous belt sleeved between the first pulley and the corresponding second pulley.

[0022] The motor 19 drives the two first pulleys to rotate, and through the corresponding second pulleys and the synchronous belt, the corresponding hollow shafts are driven to rotate, thereby driving the two stirring mechanisms to operate synchronously.

[0023] The top of the mixing tank 1 and the top of the storage tank 2 are both provided with a feeding hopper 20, and the bottom of the mixing tank 1 and the bottom of the storage tank 2 are both provided with a discharging valve 21, which facilitates the feeding and discharging of the materials.

[0024] The controller, the first waste heat utilization mechanism, the second waste heat utilization mechanism and the driving mechanism are all connected to the controller through wires, which facilitates the control of each mechanism. It should be noted that in the technical solution, a corresponding temperature sensor and a flow control valve are also installed, which facilitates the flow rate control according to the temperature, avoids affecting the mixing and preheating effect, and this is a common technical means in the technical field and belongs to the prior art.

[0025] Working principle: when in use, the friction material and raw material are added into the mixing tank 1 and the storage tank 2 through the feeding hopper 20 respectively, the controller starts the motor 19 of the driving mechanism, the motor 19 drives the hollow shaft 3 on both sides through the first pulley, the second pulley and the synchronous belt, the hollow shaft 3 in turn drives the connecting rod 4 and the synchronous rotation of the surface stirring blade 5, the spiral blade 6, the friction material in the mixing tank 1 is fully mixed, and the raw material in the storage tank 2 is stirred at the same time; the heat generated by the mixing of the mixing tank 1 is transmitted to the internal oil through the spiral heat conduction plate 8 in the heat insulation sleeve 7 of the first waste heat utilization mechanism, the first circulating pump 11 drives the oil to circulate between the heat insulation sleeves 7 of the mixing tank 1 and the storage tank 2 through the liquid inlet pipe 9 and the liquid outlet pipe 10, and the raw material in the storage tank 2 is preheated from the outside; on the other hand, the connecting rod 4 and the stirring blade 5 of the second waste heat utilization mechanism are conducted to the first flow channel 12 and the second flow channel 13 inside, the second circulating pump 17 drives the oil to circulate between the flow channels of the mixing tank 1 and the storage tank 2 through the rotary joint 14, the first connecting pipe 15 and the second connecting pipe 16, absorbs the waste heat of the mixing tank 1 from the inside and heats the raw material of the storage tank 2, and after the waste heat recovery and preheating operation is completed, the material is discharged through the discharge valve 21.

[0026] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and it is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A mixing device for friction material processing with waste heat recovery function, comprising a mixing tank (1) for mixing and friction material and a storage tank (2) for storing raw materials of mixed materials, characterized in that: A first waste heat utilization mechanism is installed between the outer surfaces of the mixing tank (1) and the storage tank (2), stirring mechanisms are installed inside the mixing tank (1) and the storage tank (2), a second waste heat utilization mechanism is installed between the two stirring mechanisms, and a driving mechanism for rotating the two stirring mechanisms is installed on the top of the mixing tank (1). The stirring mechanism comprises two hollow shafts (3) arranged symmetrically, the two hollow shafts (3) are rotatably connected to the top and bottom of the mixing tank (1) and the storage tank (2) respectively, five connecting rods (4) are installed between the two hollow shafts (3) in sequence, the adjacent two connecting rods (4) are fixedly connected through flanges, two stirring blades (5) are fixedly connected to the outer surfaces of the three connecting rods (4) at the middle and both ends symmetrically, and spiral vanes (6) are fixedly sleeved on the outer surfaces of the remaining two connecting rods (4) inside the mixing tank (1).

2. The mixing device for friction material processing with waste heat recovery function according to claim 1, characterized in that: The first waste heat utilization mechanism comprises a heat insulation sleeve (7) sleeved on the outer surfaces of the mixing tank (1) and the storage tank (2), a spiral heat conduction plate (8) fixedly connected inside the heat insulation sleeve (7), an inlet pipe (9) and an outlet pipe (10) fixedly connected symmetrically on one side of the outer surface of the heat insulation sleeve (7), the inlet pipe (9) on the mixing tank (1) and the outlet pipe (10) on the storage tank (2) are connected in communication, and a first circulating pump (11) is installed between the outlet pipe (9) on the mixing tank (1) and the inlet pipe (10) on the storage tank (2).

3. The mixing device for friction material processing with waste heat recovery function according to claim 1, characterized in that: The second waste heat utilization mechanism comprises a first flow channel (12) opened in the connecting rod (4), a second flow channel (13) opened in the stirring blade (5) and connected with the first flow channel (12), the first flow channels (12) at the top and the bottom are connected with the interiors of the corresponding hollow shafts (3), a rotary joint (14) is fixedly connected to one end of the hollow shaft (3), a first connecting pipe (15) is connected between the two rotary joints (14) at the top, a second connecting pipe (16) is fixedly connected to each of the two rotary joints (14) at the bottom, and a second circulating pump (17) is installed between the two second connecting pipes (16).

4. The mixing device for friction material processing with waste heat recovery function according to claim 1, characterized in that: The driving mechanism comprises a bracket (18) fixedly installed on the top of the mixing tank (1), a motor (19) fixedly installed on the bracket (18), a first pulley fixedly connected to the output shaft of the motor (19), a second pulley fixedly connected to the outer surface of the hollow shaft (3) on both sides, and a synchronous belt sleeved between the first pulley and the corresponding second pulley.

5. The mixing device for friction material processing with waste heat recovery function according to claim 1, characterized in that: An inlet hopper (20) is fixedly installed on one side of the top of the mixing tank (1) and the storage tank (2), and a discharge valve (21) is installed on one side of the bottom of the mixing tank (1) and the storage tank (2).

6. The mixing device for friction material processing with waste heat recovery function according to claim 1, characterized in that: A controller is further included, and the first waste heat utilization mechanism, the second waste heat utilization mechanism and the driving mechanism are connected with the controller through wires.

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