Preheating device for preparing metal-based ceramic composite material grinding roller

Abstract

The utility model provides a preheating device for preparing a metal-based ceramic composite material grinding roller, which comprises a movable drying box, a circulating fan, a heater and a control cabinet are arranged on the movable drying box, and a controller is arranged in the control cabinet; the circulating fan is fixed to the top face of the movable drying box, and the heater and the control cabinet are fixed to the side face of the movable drying box. The circulating fan and the heater are electrically connected with the controller; the device further comprises a rail car, the rail car and the movable drying box can define a hollow cube structure, the rail car slides along the guide rails, the rail type drying box device is adopted, the interior of the hollow cube is heated through a heater, gas in the hollow cube is made to flow through a circulating fan, and the prepared prefabricated body is preheated; the automation degree is high, preheating is uniform, and the composite material preparation efficiency and quality can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of preheating devices for metal matrix ceramic composite grinding rollers, and particularly relates to a preheating device for preparing metal matrix ceramic composite grinding rollers. Background Technique

[0002] In the initial stage of manufacturing large vertical mill metal matrix ceramic grinding rollers, a preform needs to be made first. In order to effectively improve the density of the metal matrix and ceramic materials when pouring molten metal subsequently and ensure the uniform denseness of the metal ceramic wear-resistant layer, it is often necessary to preheat the ceramic preform.

[0003] Application No. 201810987523.8 discloses a forming method and device for a ceramic particle-reinforced metal matrix composite preform. The pressurized paste is sprayed from a spray pipe into the lower mold of a honeycomb model, and the lower mold is heated by a lower heating plate to dry the material. At the same time, the upper heating plate rises to preheat the upper mold; the lower mold is moved to the mold closing station, and the mold closing device moves the upper mold downward through a lifting device to complete mold closing and press the paste tightly; the upper heating plate and the lower heating plate are used to heat the mold to fully volatilize the moisture and pore-forming agents in the preform, and a honeycomb ceramic porous preform is obtained after demolding; in the above patent, only the mold is used to preheat the preform, and the preheating is uneven, resulting in unstable product quality and low efficiency.

[0004] The prior art has adopted the hot air blower pipeline preheating process, but there are many problems, such as easy sand dropping during the operation process, low efficiency, high energy consumption, high cost, and unstable product quality.

[0005] Therefore, the technical problem to be solved by the utility model is that the preheating of the preform of the metal matrix ceramic composite grinding roller in the prior art is uneven, resulting in unstable product quality and low efficiency. Content of the Utility Model

[0006] In order to solve the technical problem that the preheating of the preform of the metal matrix ceramic composite grinding roller in the prior art is uneven, resulting in unstable product quality and low efficiency, the utility model provides a preheating device for preparing metal matrix ceramic composite grinding rollers.

[0007] The specific scheme is as follows:

[0008] A preheating device for preparing a metal-based ceramic composite grinding roller comprises a movable drying box, on which a circulating fan, a heater and a control cabinet are arranged, wherein a controller is arranged in the control cabinet; the circulating fan is fixed on the top surface of the movable drying box, and the heater and the control cabinet are fixed on the side of the movable drying box; the circulating fan and the heater are electrically connected to the controller; and a rail car is also included, which can be combined with the movable drying box to form a hollow cube structure, and the rail car slides along a guide rail.

[0009] The movable drying box is a hollow cubic structure with two open sides, and the movable drying box includes three side surfaces and a top surface, and the three side surfaces are respectively a first side surface, a second side surface and a third side surface; the rail car is L-shaped, including a side surface and a bottom surface, the side surface of the rail car corresponds to the second side surface of the movable drying box, and the bottom surface of the rail car corresponds to the top surface of the movable drying box.

[0010] The width of the bottom surface of the rail car is smaller than the width of the second side surface, the width of the side surface of the rail car is consistent with the width of the bottom surface, the height of the side surface of the rail car is smaller than the height of the side surface of the movable drying box, and the rail car can be embedded in the interior of the movable drying box and enclosed with the movable drying box to form a hollow cube structure.

[0011] A reinforcement plate is fixed between the side surface and the bottom surface of the rail vehicle.

[0012] A heater is arranged inside the first side of the movable drying box.

[0013] The circulating fans are arranged in four quadrilaterals and close to the four corners of the top surface.

[0014] An air inlet is arranged at the center of the top surface of the movable drying box, and an air outlet is arranged on the third side surface.

[0015] A control cabinet is fixed on the outside of the third side of the movable drying box, and an intelligent temperature controller is fixed on the side of the third side. The intelligent temperature controller is electrically connected to the controller.

[0016] An alarm is fixed on the movable drying box, and the alarm is electrically connected to the controller.

[0017] The beneficial effects of the utility model are:

[0018] The utility model provides a preheating device for preparing a metal-based ceramic composite grinding roller. The device adopts a track-type drying box device, utilizes a heater to heat the inside of a hollow cube, utilizes a circulating fan to make the gas inside the hollow cube flow, and preheats the prepared preform. The device has a high degree of automation and uniform preheating, and can improve the efficiency and quality of composite material preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0021] Among them, circulating fan 1, air inlet 2, movable drying box 3, rail car 4, guide rail 5, heater 6,

[0022] Intelligent temperature controller 7, air outlet 8, control cabinet 9, sand box 10, ceramic prefabricated part 11 DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the implementation of the utility model, not all of the implementation. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 and Figure 2 As shown, the utility model provides a preheating device for preparing a metal-based ceramic composite grinding roller, including a movable drying box 3, on which a circulating fan 1, a heater 6 and a control cabinet 9 are arranged, and a controller is arranged in the control cabinet 9; the circulating fan 1 is fixed on the top surface of the movable drying box 3, and the heater 6 and the control cabinet 9 are fixed on the side of the movable drying box 3; the circulating fan 1 and the heater 6 are electrically connected to the controller; and also includes a rail car 4, which can be combined with the movable drying box 3 to form a hollow cube structure, and the rail car 4 slides along the guide rail 5.

[0025] The utility model provides a preheating device for preparing a metal-based ceramic composite grinding roller. The device adopts a track-type drying box device, utilizes a heater to heat the inside of a hollow cube, utilizes a circulating fan to make the gas inside the hollow cube flow, and preheats the prepared preform. The device has a high degree of automation and uniform preheating, and can improve the efficiency and quality of composite material preparation.

[0026] like Figure 1 As shown, the movable drying box 3 is a hollow cubic structure with two open sides. The movable drying box 3 includes three side surfaces and a top surface, and the three side surfaces are respectively a first side surface, a second side surface and a third side surface.

[0027] like Figure 1 and Figure 2As shown, the rail vehicle 4 is L-shaped, including a side surface and a bottom surface. The side surface of the rail vehicle 4 corresponds to the second side surface of the mobile drying box 3, and the bottom surface of the rail vehicle 4 corresponds to the top surface of the mobile drying box 3, so that the mobile drying box 3 and the rail vehicle 4 can form a closed hollow cube structure with six faces, and the hollow cube structure is used to preheat the preform.

[0028] Furthermore, the width of the bottom surface of the rail vehicle 4 is smaller than the width of the second side surface. Preferably, the width of the bottom surface of the rail vehicle 4 fits the inner wall width at the opening of the mobile drying box 3. The width of the side surface of the rail vehicle 4 is the same as the width of the bottom surface. The height of the side surface of the rail vehicle 4 is smaller than the height of the side surface of the mobile drying box 3. Preferably, the height of the side surface of the rail vehicle 4 fits the inner wall height at the opening of the mobile drying box 3, so that the rail vehicle 4 can be embedded inside the mobile drying box 3 and form a hollow cube structure with the mobile drying box 3, and the preform is preheated inside the hollow cube.

[0029] Furthermore, as Figure 1 and Figure 2 shown, a reinforcing plate is fixed between the side surface and the bottom surface of the rail vehicle 4 to enhance the structural strength of the rail vehicle 4. The reinforcing plate is in the shape of a right triangle, and the two right sides of the right triangle are respectively fixed on the side surface and the bottom surface of the rail vehicle 4.

[0030] As Figure 1 and Figure 2 shown, a heater 6 is arranged inside the first side surface of the mobile drying box 3, and the controller is used to control the opening and closing of the heater 6 to realize the heating of the internal space of the hollow cube, so as to preheat the preform.

[0031] As Figure 1 and Figure 2 shown, four circulating fans 1 are arranged in a quadrilateral shape and are close to the four corners of the top surface. The circulating fans 1 are used to realize the heat preservation of the internal space of the hollow cube.

[0032] As Figure 1 shown, an air inlet hole 2 is arranged at the center of the top surface of the mobile drying box 3, and an air outlet 8 is arranged on the third side surface. By arranging the air inlet hole 2 and the air outlet 8, the air circulation in the internal space of the hollow cube is carried out.

[0033] As Figure 1 shown, a control cabinet 9 is fixed outside the third side surface of the mobile drying box 3, and an intelligent temperature controller 7 is fixed on the side of the third side surface. The intelligent temperature controller 7 is electrically connected to the controller, and the intelligent temperature controller 7 is used to detect the temperature inside the hollow cube in real time and transmit the temperature signal to the controller.

[0034] Furthermore, an alarm is fixed on the movable drying box 3, which is not shown in the attached figure. The alarm can be fixed on a side or top surface of the movable drying box 3. The alarm is electrically connected to the controller. When the preheating inside the hollow cube is completed, that is, when the intelligent temperature controller 7 detects that the temperature inside the hollow cube reaches a preset temperature, the temperature signal is transmitted to the controller, and the controller controls the alarm to sound to remind the staff that the preheating of the preform is completed.

[0035] like Figure 1 and Figure 2 As shown, a groove is provided on the bottom surface of the track vehicle 4, and a protrusion is provided on the guide rail 5, and the track vehicle 4 can slide on the guide rail 5 by cooperating with the groove and the protrusion.

[0036] Furthermore, wheels and a motor are hidden at the bottom of the movable drying box 3, and the motor is electrically connected to the controller. The controller controls the start and stop of the motor, and the motor drives the rotation of the wheels to realize the movement of the movable drying box 3 on the ground, and the moving direction of the movable drying box 3 is controlled by remote control. Among them, the structure of wheels and motors hidden in the shell is existing technology and will not be described in detail.

[0037] The specific working process of the utility model is:

[0038] The ceramic preform 11 is fixedly placed in the sand box 10, and the sealing mud is applied to close the mold. The closed sand box 10 is placed on the bottom surface of the rail car 4 in the pouring area; the moving direction of the movable drying box 3 is controlled by remote control, and the movable drying box 3 is moved to a suitable position in the pouring area, so that the guide rail 5 extends into the interior of the movable drying box 3, and the rail car 4 slides on the guide rail 5 to make a small adjustment, so that the movable drying box 3 and the rail car 4 can be enclosed to form a hollow cube structure.

[0039] Two parameters, namely the temperature to be heated and the insulation time, are preset on the controller; the controller controls the heater 6 to turn on to heat the inside of the hollow cube structure, and the controller controls the circulating fan 1 to turn on to flow hot air into the inside of the hollow cube structure. The intelligent temperature controller 7 detects the temperature inside the hollow cube structure in real time, and transmits the detected temperature value to the controller. When the detected temperature value reaches the preset temperature to be heated, the controller controls the heater 6 to stop working; the hollow cube structure is insulated by the circulating fan 1. When the insulation time reaches the preset time value, the preheating ends, and the controller controls the alarm to sound to remind the staff. At the same time, the controller controls the circulating fan 1 to stop working; the staff controls the movable drying box 3 to leave the pouring area through remote control, and pours the ceramic preform 11 on the bottom surface of the rail car 4.

[0040] Through preheating the mold and the ceramic material in the mold and then pouring molten metal for molding, the present utility model can effectively improve the density of the metal matrix and the ceramic material. The prepared metal matrix ceramic composite material not only has high density but also has high wear resistance, ensuring the uniform density of the cermet wear-resistant layer and greatly improving the production efficiency and the reliability of the product.

[0041] It should be noted that the positions of the circulating fan 1, the air inlet 2, the heater 6, the intelligent temperature controller 7, the air outlet 8, the control cabinet 9 and the alarm on the above-mentioned movable drying oven 3 are only the positions in this embodiment, and the specific positions can be adjusted adaptively according to actual needs.

[0042] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A preheating device for preparing a metal-based ceramic composite grinding roller, characterized in that: The movable drying box (3) is provided with a circulating fan (1), a heater (6) and a control cabinet (9), wherein the control cabinet (9) is provided with a controller; The circulating fan (1) is fixed on the top surface of the movable drying box (3), and the heater (6) and the control cabinet (9) are fixed on the side of the movable drying box (3); The circulating fan (1) and the heater (6) are both electrically connected to the controller; It also comprises a rail car (4), wherein the rail car (4) can be combined with the movable drying box (3) to form a hollow cubic structure, and the rail car (4) slides along the guide rail (5).

2. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 1, characterized in that: The movable drying box (3) is a hollow cubic structure with two open sides. The movable drying box (3) comprises three side surfaces and a top surface, and the three side surfaces are respectively a first side surface, a second side surface and a third side surface. The rail car (4) is L-shaped and comprises a side surface and a bottom surface; the side surface of the rail car (4) corresponds to the second side surface of the mobile drying box (3), and the bottom surface of the rail car (4) corresponds to the top surface of the mobile drying box (3).

3. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 2, characterized in that: The width of the bottom surface of the rail car (4) is smaller than the width of the second side surface, the width of the side surface of the rail car (4) is consistent with the width of the bottom surface, the height of the side surface of the rail car (4) is smaller than the height of the side surface of the movable drying box (3), and the rail car (4) can be embedded in the interior of the movable drying box (3) and enclose the movable drying box (3) to form a hollow cubic structure.

4. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 3, characterized in that: A reinforcement plate is fixed between the side surface and the bottom surface of the rail vehicle (4).

5. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 2, characterized in that: A heater (6) is arranged inside the first side surface of the movable drying box (3).

6. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 1, characterized in that: The circulation fans (1) are arranged in four quadrilaterals and are located near the four corners of the top surface.

7. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 2, characterized in that: An air inlet (2) is provided at the centre of the top surface of the movable drying box (3), and an air outlet (8) is provided on the third side surface.

8. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 2, characterized in that: A control cabinet (9) is fixed to the outside of the third side of the movable drying box (3), and an intelligent temperature controller (7) is fixed to the side of the third side. The intelligent temperature controller (7) is electrically connected to the controller.

9. The preheating device for preparing a metal-based ceramic composite grinding roller according to claim 1, characterized in that: An alarm is fixed on the movable drying box (3), and the alarm is electrically connected to the controller.

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