Preheating type kiln

Abstract

The preheating type kiln comprises a kiln body, a guide assembly and a trolley, the kiln body comprises a sintering kiln and a preheating kiln which extend in the same direction, the preheating kiln is fixedly arranged at the top of the sintering kiln and is communicated with the sintering kiln, and the guide assembly comprises a first track and two second tracks. The first rail extends in the width direction of the sintering kiln and is close to a feeding and discharging port of the sintering kiln, the two second rails penetrate through the sintering kiln and the preheating kiln respectively, the trolley is connected with the first rail or the second rails, and the trolley can support materials to be sintered to move between the first rail and the two second rails. Due to the fact that the preheating kiln is fixedly arranged at the top of the sintering kiln and communicated with the sintering kiln, heat generated in the working process of the sintering kiln can be radiated upwards into the preheating kiln, the preheating kiln can effectively absorb heat energy radiated in the sintering kiln, and the temperature needed by preheating work is effectively guaranteed. And waste heat generated in the sintering kiln is reasonably utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of kilns, in particular to a preheating kiln. Background Art

[0002] A kiln usually consists of four parts: a kiln chamber, combustion equipment, ventilation equipment, and conveying equipment. Electric kilns mostly use electric furnace wires, silicon carbon rods, or molybdenum disilicide as heating elements.

[0003] For example, the energy-saving push-plate kiln for drying, preheating and sintering refractory materials proposed in the patent application with application number CN201110217941.7, in which the two ends of the energy-saving push-plate kiln are respectively connected with the preheating kiln and the cooling kiln, so that when the energy-saving push-plate kiln sintered the blanks, it would inevitably release heat energy into the cooling kiln and the preheating kiln, which could meet the heat energy required for preheating the blanks and the heat energy required for cooling down the temperature. It not only achieved the purpose of reducing energy consumption, but also ensured the stability of product quality.

[0004] However, the heat energy transferred to the preheating kiln when the kiln is working is limited, so that it cannot meet the working requirements of the preheating kiln, and there is also the problem of unreasonable utilization of waste heat in the kiln. Utility Model Content

[0005] In view of this, it is necessary to provide a preheating kiln to solve the problem that the heat energy transferred to the preheating kiln when the kiln is working is limited, so that the working requirements of the preheating kiln cannot be met, and the waste heat in the kiln is not utilized reasonably.

[0006] The utility model provides a preheating kiln, comprising a kiln body, a guide assembly and a trolley, wherein the kiln body comprises a sintering kiln and a preheating kiln extending in the same direction, the preheating kiln is fixedly arranged on the top of the sintering kiln and is arranged in communication, the guide assembly comprises a first track and two second tracks, the first track extends along the width direction of the sintering kiln and is arranged close to the inlet and outlet of the sintering kiln, the two second tracks both extend along the length direction of the sintering kiln and pass through the sintering kiln and the preheating kiln respectively, and the trolley is connected to the first track or the second track.

[0007] Furthermore, heating elements are installed on the inner walls of both sides of the sintering kiln.

[0008] Furthermore, a first through hole is formed at the top of the sintering kiln, a second through hole connected to the first through hole is formed at the bottom of the sintering kiln, a third through hole is formed at the top of the sintering kiln, and the kiln body also includes a first filter element and a second filter element, the first filter element is installed in the first through hole and / or the second through hole, and the second filter element is installed in the third through hole.

[0009] Furthermore, there are a plurality of the first through holes and a plurality of the second through holes, and the plurality of the first through holes and the plurality of the second through holes are arranged in sequence along the extension direction of the sintering kiln.

[0010] Furthermore, the number of the first tracks is two, the two first tracks are arranged in parallel, the sintering kiln and the preheating kiln are both provided with inlets and outlets at the head and the tail along their extension direction, and the two first tracks are respectively arranged at the two inlets and outlets of the sintering kiln.

[0011] Furthermore, the number of the first tracks is one, a first material change port is formed at the inner top wall of the sintering kiln away from its feed port, a second material change port connected to the first material change port is formed at the inner bottom wall of the preheating kiln away from its feed port, and the trolley can be moved from the preheating kiln to the sintering kiln via the first material change port and the second material change port.

[0012] Furthermore, it also includes a vertically arranged third track, both ends of which respectively pass through the first material change port and the second material change port and extend into the sintering kiln and the preheating kiln, and the trolley can be connected to the third track.

[0013] Furthermore, movable doors are installed at the inlet and outlet of the sintering kiln and the inlet and outlet of the preheating kiln, and the movable doors are used to open and close the inlet and outlet.

[0014] Furthermore, the trolley includes a base, a lifting member, a connecting plate and a support plate, the base is slidably connected to the first track, the lifting member is installed on the base, the output end of the lifting member is connected to the connecting plate to drive the connecting plate to move in a vertical direction, and the support plate is slidably connected to the connecting plate or the second track along the extension direction of the sintering kiln.

[0015] Furthermore, the trolley includes a first driving member and a second driving member, the first driving member is installed on the base, the output end of the first driving member is connected to the first track, the second driving member is installed on the support plate, and the output end of the second driving member is connected to the connecting plate or the second track.

[0016] Compared with the prior art, the trolley can support the movement of the material to be sintered between the first track and the two second tracks, so as to enter and exit the sintering kiln and the preheating kiln. Since the preheating kiln is fixedly arranged on the top of the sintering kiln and is connected to each other, the heat generated during the operation of the sintering kiln will radiate upward to the preheating kiln. The preheating kiln can effectively absorb the heat energy radiated from the sintering kiln, effectively ensure the temperature required for the preheating work, and reasonably utilize the waste heat generated in the sintering kiln. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic top view of the entire preheating kiln provided in an embodiment of the utility model;

[0018] Figure 2 A schematic front view of the entire preheating kiln provided in an embodiment of the utility model;

[0019] Figure 3 The preheating kiln provided by the embodiment of the utility model Figure 2 Sectional view of the middle AA plane;

[0020] Figure 4 A schematic diagram of the structure of a trolley passing through a preheating furnace in a preheating furnace provided in an embodiment of the utility model;

[0021] Figure 5 A schematic diagram of the structure of a trolley in a preheating kiln provided in an embodiment of the utility model passing through a sintering furnace. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0023] like Figure 1-5 As shown, the utility model provides a preheating kiln, including a kiln body 100, a guide assembly 200 and a trolley 300. The kiln body 100 includes a sintering kiln 110 and a preheating kiln 120 extending in the same direction. The preheating kiln 120 is fixedly arranged on the top of the sintering kiln 110 and is connected. The guide assembly 200 includes a first track 210 and two second tracks 220. The first track 210 extends along the width direction of the sintering kiln 110 and is arranged close to the inlet and outlet of the sintering kiln 110. The two second tracks 220 both extend along the length direction of the sintering kiln 110 and pass through the sintering kiln 110 and the preheating kiln 120 respectively. The trolley 300 is connected to the first track 210 or the second track 220.

[0024] During implementation, the trolley 300 can support the movement of the material to be sintered between the first track 210 and the two second tracks 220, so as to enter and exit the sintering kiln 110 and the preheating kiln 120. Since the preheating kiln 120 is fixedly arranged on the top of the sintering kiln 110 and is connected, the heat generated during the operation of the sintering kiln 110 will radiate upward to the preheating kiln 120. The preheating kiln 120 can effectively absorb the heat energy radiated from the sintering kiln 110, effectively ensure the temperature required for the preheating work, and reasonably utilize the waste heat generated in the sintering kiln 110.

[0025] The kiln body in this embodiment includes a sintering kiln 110 and a preheating kiln 120 extending in the same direction, and the preheating kiln 120 is fixedly arranged on the top of the sintering kiln 110 and is arranged in communication. Among them, heating elements 111 are installed on the inner walls of both sides of the sintering kiln 110. It can be understood that the heating element 111 can use heating elements such as electric furnace wire to realize the heating function in the sintering furnace 110.

[0026] In order to achieve the connection between the preheating kiln 120 and the sintering kiln 110, in one embodiment, a first through hole is formed at the top of the sintering kiln 110, a second through hole connected to the first through hole is formed at the bottom of the sintering kiln 110, and a third through hole is formed at the top of the sintering kiln 110. The kiln body 100 also includes a first filter 112 and a second filter 121. The first filter 112 is installed in the first through hole and / or the second through hole, and the second filter 121 is installed in the third through hole. The first filter 112 and the second filter 121 are structures for filtering harmful substances in the flue gas.

[0027] There are multiple first through holes and multiple second through holes, and the multiple first through holes and the multiple second through holes are arranged in sequence along the extension direction of the sintering kiln 110 .

[0028] It should be noted that the number of the first through holes and the second through holes should be set according to the temperature requirements in the preheating kiln 120 and the sintering kiln 110. Specifically, the more the number of the first through holes and the second through holes is, the faster the sintering kiln 110 radiates heat to the preheating kiln 120, the higher the temperature in the preheating kiln 120, and the lower the temperature in the sintering kiln 110. Conversely, the fewer the number of the first through holes and the second through holes is, the slower the sintering kiln 110 radiates heat to the preheating kiln 120, the lower the temperature in the preheating kiln 120, and the higher the temperature in the sintering kiln 110.

[0029] The guide assembly 200 in this embodiment is a structure for the trolley 300 to move, and includes a first track 210 and two second tracks 220. The first track 210 extends along the width direction of the sintering kiln 110 and is arranged near the inlet and outlet of the sintering kiln 110. The two second tracks 220 extend along the length direction of the sintering kiln 110 and are respectively arranged through the sintering kiln 110 and the preheating kiln 120. It can be understood that the first track 210 and the second track 220 each include two guide rails arranged in parallel.

[0030] In one embodiment, there are two first tracks 210, which are arranged in parallel. The sintering kiln 110 and the preheating kiln 120 are provided with inlets and outlets at the head and the end along the extension direction thereof, and the two first tracks 210 are respectively arranged at the two inlets and outlets of the sintering kiln 110.

[0031] In another embodiment, the number of the first rails 210 is one, a first material change port is formed at the inner top wall of the sintering kiln 110 away from its feed port, a second material change port connected to the first material change port is formed at the inner bottom wall of the preheating kiln 120 away from its feed port, and the trolley 300 can be moved from the preheating kiln 120 to the sintering kiln 110 via the first material change port and the second material change port.

[0032] At this time, a third track is also provided vertically, and the two ends of the third track respectively pass through the first material changing port and the second material changing port and extend to the sintering kiln 110 and the preheating kiln 120, and the trolley 300 can be connected to the third track, which can effectively prevent the preheated material from contacting with the outside air and affecting the subsequent sintering effect.

[0033] In one embodiment, movable doors are installed at the inlet and outlet of the sintering kiln 110 and the inlet and outlet of the preheating kiln 120, and the movable doors are used to open and close the inlet and outlet.

[0034] The trolley 300 in this embodiment is connected to the first rail 210 or the second rail 220 .

[0035] In one embodiment, the trolley 300 includes a base 310, a lifting member 320, a connecting plate 330 and a supporting plate 340. The base 310 is slidably connected to the first track 210. The lifting member 320 is mounted on the base 310. The output end of the lifting member 320 is connected to the connecting plate 330 to drive the connecting plate 330 to move in the vertical direction. The supporting plate 340 is slidably connected to the connecting plate 330 or the second track 220 along the extension direction of the sintering kiln 110. The lifting member can be implemented by a plurality of jacking cylinders.

[0036] The lifting member 320 can adjust the height of the support plate 340 so that the support plate 340 can be moved from the connecting plate 330 to a different second track 220 , or receive the support plate 340 guided from the second track 220 to the connecting plate 330 .

[0037] In one embodiment, the trolley 300 includes a first driving member and a second driving member, wherein the first driving member is mounted on the base 310, and the output end of the first driving member is connected to the first track 210, and the second driving member is mounted on the support plate 340, and the output end of the second driving member is connected to the connecting plate 330 or the second track 220. It can be understood that the first driving member and the second driving member can be implemented by using structures such as traveling wheels, which are structures that can be thought of by those skilled in the art, and no further elaboration and description will be given here.

[0038] Compared with the prior art: the trolley 300 can support the movement of the material to be sintered between the first track 210 and the two second tracks 220, so as to enter and exit the sintering kiln 110 and the preheating kiln 120. Since the preheating kiln 120 is fixedly arranged on the top of the sintering kiln 110 and is connected, the heat generated during the operation of the sintering kiln 110 will radiate upward to the preheating kiln 120. The preheating kiln 120 can effectively absorb the heat energy radiated from the sintering kiln 110, effectively ensure the temperature required for the preheating work, and reasonably utilize the waste heat generated in the sintering kiln 110.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A preheating kiln, characterized in that: include: A kiln body, comprising a sintering kiln and a preheating kiln extending in the same direction, wherein the preheating kiln is fixedly arranged on the top of the sintering kiln and is arranged in communication with the preheating kiln; A guide assembly, comprising a first track and two second tracks, wherein the first track extends along the width direction of the sintering kiln and is arranged near the inlet and outlet of the sintering kiln, and the two second tracks both extend along the length direction of the sintering kiln and pass through the sintering kiln and the preheating kiln respectively; A trolley is connected to the first track or the second track.

2. The preheating kiln according to claim 1, characterized in that: Heating elements are installed on the inner walls of both sides of the sintering kiln.

3. The preheating kiln according to claim 1, characterized in that: A first through hole is formed at the top of the sintering kiln, a second through hole connected to the first through hole is formed at the bottom of the sintering kiln, a third through hole is formed at the top of the sintering kiln, and the kiln body also includes a first filter element and a second filter element, the first filter element is installed in the first through hole and / or the second through hole, and the second filter element is installed in the third through hole.

4. The preheating kiln according to claim 3, characterized in that: There are a plurality of the first through holes and a plurality of the second through holes, and the plurality of the first through holes and the plurality of the second through holes are arranged in sequence along the extension direction of the sintering kiln.

5. The preheating kiln according to claim 1, characterized in that: There are two first tracks, which are arranged in parallel. The sintering kiln and the preheating kiln are provided with inlets and outlets at the head and the tail along their extension directions, and the two first tracks are respectively arranged at the two inlets and outlets of the sintering kiln.

6. The preheating kiln according to claim 1, characterized in that: The number of the first track is one, a first material change port is formed at the inner top wall of the sintering kiln away from its feed port, a second material change port connected to the first material change port is formed at the inner bottom wall of the preheating kiln away from its feed port, and the trolley can be moved from the preheating kiln to the sintering kiln via the first material change port and the second material change port.

7. The preheating kiln according to claim 6, characterized in that: It also includes a vertically arranged third track, both ends of which respectively pass through the first material change port and the second material change port and extend into the sintering kiln and the preheating kiln, and the trolley can be connected to the third track.

8. The preheating kiln according to claim 1, characterized in that: The inlet and outlet of the sintering kiln and the inlet and outlet of the preheating kiln are both equipped with movable doors, and the movable doors are used to open and close the inlet and outlet.

9. The preheating kiln according to claim 1, characterized in that: The trolley includes a base, a lifting member, a connecting plate and a supporting plate. The base is slidably connected to the first track. The lifting member is installed on the base. The output end of the lifting member is connected to the connecting plate to drive the connecting plate to move in a vertical direction. The supporting plate is slidably connected to the connecting plate or the second track along the extension direction of the sintering kiln.

10. The preheating kiln according to claim 9, characterized in that: The trolley includes a first driving member and a second driving member, the first driving member is installed on the base, the output end of the first driving member is connected to the first track, the second driving member is installed on the support plate, and the output end of the second driving member is connected to the connecting plate or the second track.

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