Kiln for firing light high-alumina bricks

Abstract

The utility model discloses a kiln for firing light high-alumina bricks. The kiln comprises a base and a hot air circulating mechanism, a firing furnace is arranged on the upper surface of the base; the hot air circulating mechanism comprises a hot air pipeline and fixing frames, the uniformly distributed fixing frames are fixedly connected to the rear side face of the firing furnace, the hot air pipeline is fixedly connected between the fixing frames, the upper end of the hot air pipeline communicates with the upper surface of the firing furnace, and the lower end of the hot air pipeline extends into the firing furnace; the kiln comprises a firing furnace and a hot air pipeline, the hot air pipeline located in the firing furnace is provided with transverse pipelines which are evenly distributed, the kiln further comprises a controller and resistance belts, the controller is arranged on the right side face of the firing furnace, the resistance belts are evenly and fixedly connected to the inner walls of the left side and the right side of the firing furnace respectively, and the input end of the controller is electrically connected with an external power source. The bottom wall is heated through hot air circulation, moisture at the bottom is removed, and firing of the light high-alumina bricks at the bottom is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to light high alumina brick firing technical field, concretely is a light high alumina brick firing kiln. BACKGROUND

[0002] Light high alumina brick is usually divided into two categories: one is the ordinary light high alumina brick made of natural high alumina bauxite clinker; another is the high-quality light high alumina product made of fused or sintered alumina, which is also called light corundum brick because its main crystal phase is corundum. High-quality light high alumina brick can be used for the lining of furnace and kiln directly contacted with flame, but not suitable for the occasion directly eroded by molten slag. Because light high alumina brick has good chemical stability in reducing atmosphere, the kiln with hydrogen, carbon monoxide and other gases as protective atmosphere generally adopts light high alumina brick as heat insulation lining.

[0003] When the kiln is used for firing light high alumina brick, the firing efficiency of light high alumina brick at different positions is different. Because the humidity at the bottom of the kiln is higher than that at other places, and the bottom wall is isolated by the trolley on which the light high alumina brick is placed, the light high alumina brick at the bottom is fired slowly. Therefore, the present application provides a light high alumina brick firing kiln. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a light high alumina brick firing kiln. The bottom wall is heated by hot gas circulation to remove the humidity at the bottom and accelerate the firing of light high alumina brick at the bottom, so that the problems in the background art can be effectively solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a light high alumina brick firing kiln, comprising a base and a hot gas circulation mechanism.

[0006] The upper surface of the base is provided with a firing furnace.

[0007] The hot gas circulation mechanism comprises a hot gas pipeline and a fixing frame. The rear side of the firing furnace is fixedly connected with uniformly distributed fixing frames, and the fixing frames are fixedly connected with the hot gas pipeline. The upper end of the hot gas pipeline is in communication with the upper surface of the firing furnace, and the lower end of the hot gas pipeline extends into the interior of the firing furnace. The hot gas pipeline located in the interior of the firing furnace is provided with uniformly distributed transverse pipelines. The bottom wall is heated by hot gas circulation to remove the humidity at the bottom and accelerate the firing of light high alumina brick at the bottom.

[0008] Further, it further comprises a controller and a resistance band. The controller is arranged on the right side of the firing furnace, and the resistance band is fixedly connected to the inner walls on the left and right sides of the firing furnace. The input end of the controller is electrically connected with an external power source, and the input end of the resistance band is electrically connected with the output end of the controller to realize firing.

[0009] Further, the hot gas circulation mechanism further comprises a pressure gauge and a mounting seat, the rear side of the firing furnace is connected with the mounting seat through bolts, the upper surface of the mounting seat is fixedly connected with the pressure gauge, the detection end of the pressure gauge is connected with the middle part of the hot gas pipeline in communication, and the internal air pressure is detected.

[0010] Further, the hot gas circulation mechanism further comprises a pressure gauge and a mounting seat, the rear side of the firing furnace is connected with the mounting seat through bolts, the upper surface of the mounting seat is fixedly connected with the pressure gauge, the detection end of the pressure gauge is connected with the middle part of the hot gas pipeline in communication, and the internal air pressure is detected.

[0011] Further, the automatic opening and closing mechanism further comprises a limiting wheel one and a limiting wheel two, the front ends of the left and right side walls of the firing furnace are provided with limiting grooves, the left and right side inner walls of the kiln door are rotatably connected with the limiting wheel one which is uniformly distributed through a rotating seat one, the limiting wheel one is slidably connected to the adjacent inner wall of the limiting groove on the same side, the left and right side inner walls of the kiln door are rotatably connected with the limiting wheel two which is uniformly distributed through a rotating seat two, and the limiting wheel two is slidably connected to the adjacent side wall of the firing furnace.

[0012] Further, the automatic opening and closing mechanism further comprises a limiting wheel one and a limiting wheel two, the front ends of the left and right side walls of the firing furnace are provided with limiting grooves, the left and right side inner walls of the kiln door are rotatably connected with the limiting wheel one which is uniformly distributed through a rotating seat one, the limiting wheel one is slidably connected to the adjacent inner wall of the limiting groove on the same side, the left and right side inner walls of the kiln door are rotatably connected with the limiting wheel two which is uniformly distributed through a rotating seat two, and the limiting wheel two is slidably connected to the adjacent side wall of the firing furnace.

[0013] Further, the upper surface of the base is provided with steps which are symmetrically distributed, the upper surfaces of the steps are provided with guide rails, and the steps and the guide rails pass through the adjacent avoiding grooves of the kiln door, so that the light high-alumina bricks can enter the inside of the firing furnace.

[0014] Compared with the prior art, the kiln for firing light high-alumina bricks has the following advantages.

[0015] The trolley loaded with the light high-alumina bricks is sent into the inside of the firing furnace through the guide rails, the kiln door is closed, the electric resistance belt is turned on through the controller, the light high-alumina bricks are fired by the electric resistance belt, the generated hot gas flows to the lower end of the trolley through the hot gas pipeline and the transverse pipeline, the hot gas evaporates the moisture at the bottom of the firing furnace, and the temperature at the bottom of the firing furnace is increased, so that the firing of the light high-alumina bricks at the lower end of the trolley is accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 It is a sectional structural schematic view of the utility model;

[0018] Figure 3 It is the enlarged structure schematic view of the utility model A place;

[0019] Figure 4 It is the rear view structure schematic view of the utility model.

[0020] In the drawing: 1 base, 2 hot gas circulation mechanism, 21 hot gas pipeline, 22 pressure gauge, 23 mounting seat, 24 fixing frame, 25 electric butterfly valve, 26 exhaust pipeline, 3 automatic opening and closing mechanism, 31 hydraulic cylinder, 32 kiln door, 33 limit wheel one, 34 limit wheel two, 4 limit groove, 5 firing furnace, 6 step, 7 guide rail, 8 controller, 9 resistance belt, 10 horizontal pipeline. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 The embodiment provides a technical scheme: a kiln for firing light high-alumina brick, comprising a base 1 and a hot gas circulation mechanism 2.

[0023] The base 1: the upper surface is provided with a firing furnace 5.

[0024] The hot gas circulation mechanism 2 comprises a hot gas pipeline 21 and a fixing frame 24, the rear side of the firing furnace 5 is fixedly connected with the fixing frame 24 which is uniformly distributed, the fixing frame 24 is fixedly connected with the hot gas pipeline 21, the upper end of the hot gas pipeline 21 is communicated with the upper surface of the firing furnace 5, the lower end of the hot gas pipeline 21 extends to the inside of the firing furnace 5, the hot gas pipeline 21 located in the inside of the firing furnace 5 is provided with the transverse pipeline 10 which is uniformly distributed, the hot gas circulation mechanism 2 further comprises a pressure gauge 22 and a mounting seat 23, the rear side of the firing furnace 5 is bolted with the mounting seat 23, the upper surface of the mounting seat 23 is fixedly connected with the pressure gauge 22, the detection end of the pressure gauge 22 is communicated with the middle part of the hot gas pipeline 21, the hot gas circulation mechanism 2 further comprises an electric butterfly valve 25 and an exhaust pipeline 26, the upper end of the exhaust pipeline 26 is fixedly connected with the electric butterfly valve 25, the input end of the electric butterfly valve 25 is electrically connected with the output end of the controller 8, the electric resistance belt 9 is opened through the controller 8, the electric resistance belt 9 is used for firing the lightweight high alumina brick, the generated hot gas flows to the lower end of the trolley through the hot gas pipeline 21 and the transverse pipeline 10, the hot gas evaporates the moisture at the bottom of the firing furnace 5, at the same time, the temperature at the bottom of the firing furnace 5 is increased, the firing of the lightweight high alumina brick located at the lower end of the trolley is accelerated, the pressure gauge 22 detects the pressure in the hot gas pipeline 21, when the pressure reaches a dangerous value, the electric butterfly valve 25 is opened through the controller 8 to release the pressure.

[0025] The controller 8 and the electric resistance belt 9 are further included, the controller 8 is arranged on the right side of the firing furnace 5, the electric resistance belt 9 is fixedly connected to the inner walls on the left and right sides of the firing furnace 5 respectively and uniformly, the input end of the controller 8 is electrically connected with an external power supply, and the input end of the electric resistance belt 9 is electrically connected with the output end of the controller 8.

[0026] Wherein: still include automatic open and close mechanism 3, automatic open and close mechanism 3 include hydraulic cylinder 31 and kiln door 32, the front side of firing furnace 5 is provided with kiln door 32, the upper surface of base 1 is connected with hydraulic cylinder 31 by bolt on the left and right two ends, the extension end of hydraulic cylinder 31 is fixedly connected with the upper end of the adjacent side of kiln door 32 respectively, the oil inlet of hydraulic cylinder 31 is connected with the oil outlet of external oil pump in communication, automatic open and close mechanism 3 still include limit wheel one 33 and limit wheel two 34, the front end of the left and right side walls of firing furnace 5 is equipped with limit slot 4, the left and right side inner walls of kiln door 32 are rotatably connected with evenly distributed limit wheel one 33 through rotating seat one, limit wheel one 33 is slidably connected with the adjacent inner wall of limit slot 4 on the same side respectively, the left and right side inner walls of kiln door 32 are rotatably connected with evenly distributed limit wheel two 34 through rotating seat two, limit wheel two 34 is slidably connected with the adjacent side wall of firing furnace 5 respectively, the upper surface of base 1 is equipped with left-right symmetrical distributed step 6, the upper surface of step 6 is equipped with guide rail 7, step 6 and guide rail 7 all pass through the adjacent avoiding slot of kiln door 32, through controller 8 control external oil pump, external oil pump controls the extension end of two hydraulic cylinders 31 to retract, kiln door 32 closes, limit wheel one 33 is slidably connected with the adjacent inner wall of limit slot 4 on the same side respectively, limit wheel two 34 is slidably connected with the adjacent side wall of firing furnace 5 respectively, limit wheel one 33 and limit wheel two 34 limit the automatic degree of kiln door 32 before and after closing and left and right.

[0027] The working principle of the kiln for firing light high-aluminum brick provided by the utility model is as follows: the trolley loaded with light high-aluminum bricks is sent into the inside of the firing furnace 5 through the guide rail 7, the horizontal pipeline 10 is located at the lower end of the trolley, then the external oil pump is controlled by the controller 8, the extension end of the two hydraulic cylinders 31 is retracted by the external oil pump, the kiln door 32 is closed, the limit wheel one 33 is slidably connected with the adjacent inner wall of the limit slot 4 on the same side respectively, the limit wheel two 34 is slidably connected with the adjacent side wall of the firing furnace 5 respectively, the limit wheel one 33 and the limit wheel two 34 limit the automatic degree of the kiln door 32 before and after closing and left and right, the resistance belt 9 is started by the controller 8, the light high-aluminum bricks are fired by the resistance belt 9, the hot gas generated flows to the lower end of the trolley through the hot gas pipeline 21 and the horizontal pipeline 10, the hot gas evaporates the moisture at the bottom of the firing furnace 5, simultaneously increases the temperature at the bottom of the firing furnace 5, speeds up the firing of the light high-aluminum bricks at the lower end of the trolley, the pressure of the hot gas pipeline 21 is detected by the pressure gauge 22, when the pressure reaches a dangerous value, the electric butterfly valve 25 is opened by the controller 8 to release the pressure.

[0028] It is worth noting that the controller 8 disclosed in the above embodiment can be FX5U-80MT / ES controller, the electric butterfly valve 25 can be WAM-V1 FS-150 butterfly valve, the hydraulic cylinder 31 can be HSG50 hydraulic cylinder, the controller 8 controls the electric butterfly valve 25, the resistance belt 9 and the external oil pump to work, which all adopt the method commonly used in the prior art.

[0029] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection scope of the present application.

Claims

1. A lightweight high alumina brick firing kiln characterized by: Base (1) and hot gas circulation mechanism (2) are included. The base (1) is provided with a firing furnace (5) on the upper surface. The hot gas circulation mechanism (2) includes a hot gas pipeline (21) and a fixing frame (24), the rear side of the firing furnace (5) is fixedly connected with the fixing frame (24) which is uniformly distributed, the hot gas pipeline (21) is fixedly connected between the fixing frames (24), the upper end of the hot gas pipeline (21) is communicated with the upper surface of the firing furnace (5), the lower end of the hot gas pipeline (21) extends to the inside of the firing furnace (5), and the hot gas pipeline (21) located in the inside of the firing furnace (5) is provided with uniformly distributed transverse pipelines (10).

2. The light weight high alumina brick firing kiln as claimed in claim 1, wherein: A controller (8) and a resistance belt (9) are further included, the controller (8) is arranged on the right side of the firing furnace (5), the resistance belt (9) is fixedly connected to the inner walls on the left and right sides of the firing furnace (5) respectively, the input end of the controller (8) is electrically connected with an external power supply, and the input end of the resistance belt (9) is electrically connected with the output end of the controller (8).

3. The kiln for firing the light weight high alumina brick as claimed in claim 1 wherein: The hot gas circulation mechanism (2) further includes a pressure gauge (22) and a mounting seat (23), the rear side of the firing furnace (5) is connected with the mounting seat (23) through bolts, the upper surface of the mounting seat (23) is fixedly connected with the pressure gauge (22), and the detection end of the pressure gauge (22) is communicated with the middle part of the hot gas pipeline (21).

4. The kiln for firing the light weight high alumina brick as claimed in claim 2 wherein: The hot gas circulation mechanism (2) further includes an electric butterfly valve (25) and an exhaust pipeline (26), the upper end of the firing furnace (5) is provided with the exhaust pipeline (26), the upper end of the exhaust pipeline (26) is fixedly connected with the electric butterfly valve (25), and the input end of the electric butterfly valve (25) is electrically connected with the output end of the controller (8).

5. The kiln for firing the light weight high alumina brick as claimed in claim 2 wherein: An automatic opening and closing mechanism (3) is further included, the automatic opening and closing mechanism (3) includes hydraulic cylinders (31) and kiln doors (32), the front side of the firing furnace (5) is provided with the kiln door (32), the upper surfaces of the left and right ends of the base (1) are both connected with the hydraulic cylinders (31) through bolts, the extension ends of the hydraulic cylinders (31) are fixedly connected with the upper ends of the adjacent side surfaces of the kiln door (32) respectively, and the oil inlets of the hydraulic cylinders (31) are communicated with the oil outlets of external oil pumps.

6. A kiln for firing lightweight high alumina bricks according to claim 5, characterized in that: The automatic opening and closing mechanism (3) further includes limiting wheels one (33) and limiting wheels two (34), the front ends of the left and right side walls of the firing furnace (5) are both provided with limiting grooves (4), the inner walls on the left and right sides of the kiln door (32) are both rotatably connected with the limiting wheels one (33) which are uniformly distributed through rotating seats one, the limiting wheels one (33) are slidably connected with the adjacent inner walls of the limiting grooves (4) on the same side respectively, the inner walls on the left and right sides of the kiln door (32) are both rotatably connected with the limiting wheels two (34) which are uniformly distributed through rotating seats two, and the limiting wheels two (34) are slidably connected with the adjacent side walls of the firing furnace (5) respectively.

7. The kiln for firing light weight high alumina bricks as claimed in claim 5 wherein: The upper surface of the base (1) is provided with steps (6) which are symmetrically distributed on the left and right sides, the upper surfaces of the steps (6) are both provided with guide rails (7), and the steps (6) and the guide rails (7) all pass through the adjacent avoiding grooves of the kiln door (32).

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