Pre-combustion furnace capable of regulating and controlling feeding amount in multi-stage mode

Abstract

The utility model relates to the technical field of combustion furnaces, and discloses a feeding quantity multistage regulation type pre-combustion furnace which comprises a pre-combustion furnace body with a feeding end and a discharging end, an air locking feeding mechanism is arranged at the feeding end of the pre-combustion furnace body, the discharging end of the pre-combustion furnace body is communicated with a decomposing furnace, and a stepped pushing mechanism is arranged on the inner bottom face of the pre-combustion furnace body. The pre-combustion furnace capable of regulating and controlling the feeding amount in multiple stages has the advantages of regulating and controlling the feeding amount in multiple stages and the like, and solves the problems that when the pre-combustion furnace is used, household garbage is fed into the pre-combustion furnace for pre-combustion through a feeding mechanism in most of the pre-combustion furnaces, but most of the existing pre-combustion furnaces do not have the feeding amount in multiple stages, so that the pre-combustion furnace is inconvenient to use. The problem that household garbage entering the pre-combustion furnace is stacked, caked and formed into rings due to the fact that a feeding mechanism is clamped or the household garbage cannot be better pre-combusted in the pre-combustion furnace is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustion furnace technical field, concretely is a kind of multistage control type precombustion furnace of material input quantity. BACKGROUND

[0002] Precombustion furnace is a kind of device that cement is processed by burning combustible material such as household garbage and coal mine, and precombustion furnace can be pre-processed into combustible material (plastic, paper, rubber etc.), non-combustible material (spoilage, masonry, kitchen waste etc.), and then according to the physical and chemical properties of each part, different disposal methods are taken in cement production system, so that household garbage can be better treated.

[0003] When precombustion furnace is used, most precombustion furnaces are used to send household garbage into the inside of precombustion furnace for precombustion by feeding mechanism, and most of the existing precombustion furnaces do not have the function of multistage control of material input quantity, so that the household garbage in the inside of precombustion furnace is stacked, caked and ringed, so that feeding mechanism is jammed or household garbage cannot be better precombusted in the inside of precombustion furnace, so a kind of multistage control type precombustion furnace of material input quantity is proposed to solve the above problems. SUMMARY

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a kind of multistage control type precombustion furnace of material input quantity, with the advantages of multistage control of material input quantity, solve the problem that most precombustion furnaces are used to send household garbage into the inside of precombustion furnace for precombustion by feeding mechanism, and most of the existing precombustion furnaces do not have the function of multistage control of material input quantity, so that the household garbage in the inside of precombustion furnace is stacked, caked and ringed, so that feeding mechanism is jammed or household garbage cannot be better precombusted in the inside of precombustion furnace.

[0006] (II) technical scheme

[0007] The technical scheme for solving the above technical problems of the utility model is as follows: a kind of multistage control type precombustion furnace of material input quantity, including the precombustion furnace with material input end and material output end, the material input end of the precombustion furnace is equipped with wind-locking feeding mechanism, the material output end of the precombustion furnace is communicated with decomposition furnace, the inside bottom surface of the precombustion furnace is equipped with stepped pusher mechanism;

[0008] The lock air feeding mechanism comprises a first lock air valve plate, a second lock air valve plate, a transmission member and a bin, the first lock air valve plate and the second lock air valve plate are arranged in an upper and lower interval, the transmission member is used for driving the first lock air valve plate and the second lock air valve plate to cyclically open to access waste materials and output the waste materials to the bin, the bin is internally provided with a distribution valve, the distribution valve is communicated with a screw feeder at an output end, and the output end of the screw feeder is communicated with a precombustion furnace.

[0009] The utility model discloses the beneficial effect is: through the tooth block and gear, make the rotation of the pivot, further make the left valve plate and right valve plate of upside open simultaneously, the left valve plate and right valve plate of bottom close, further make the control of the amount of feeding and can lock the high temperature air of inside.

[0010] The amount of feeding multistage regulation type precombustion furnace has the advantages of the amount of feeding multistage regulation function.

[0011] On the basis of the above technical scheme, the utility model further can make the following improvement.

[0012] Further, the first lock air valve plate and the second lock air valve plate each comprise a left valve plate and a right valve plate, and the left valve plate and the right valve plate are each arranged in an L shape on opposite sides and are mutually embedded.

[0013] The beneficial effect of the above further scheme is that the high-temperature air is locked by the mutual embedding of the left valve plate and the right valve plate, so that the precombustion effect is better.

[0014] Further, the transmission member comprises a motor, a vertical shaft is arranged at an output end of the motor, a threaded rod is fixedly connected to a top of the vertical shaft, the threaded rod is divided into two sections, and the screw threads of the two sections are oppositely arranged, the outer sides of the screw threads of the two sections of the threaded rod are each threadedly connected to a moving block, a rotating shaft is fixedly connected to the inside of each of the two left valve plates and the two right valve plates, a gear is fixedly connected to the outside of each of the four rotating shafts, a tooth block is engaged with each of the four gears, a first support block is fixedly connected to the opposite side of each of the two moving blocks, a second support block is fixedly connected to the opposite side of each of the four tooth blocks, and a connecting rod is rotatably connected to the inside of the first support block and the second support block on the same side.

[0015] The beneficial effect of the above further scheme is that the vertical shaft can be rotated by the motor.

[0016] Further, a limiting block is fixedly connected to the back of each of the four tooth blocks, and a bin is slidably connected to the outside of each of the four limiting blocks.

[0017] The beneficial effect of the above further scheme is that the tooth block can be limited in the moving direction by the limiting block.

[0018] Further, the waste is transported to the air-lock feeding mechanism by the conveying belt, and the waste is transported to the air-lock feeding mechanism by the conveying belt.

[0019] The waste is transported to the air-lock feeding mechanism by the conveying belt.

[0020] Further, the bottom of the pre-combustion furnace is arranged in a stepped manner, the pre-combustion furnace is provided with a hydraulic push rod and an air cannon, the output end of the hydraulic push rod is arranged at the top surface of the steps in the pre-combustion furnace, each step surface of the pre-combustion furnace except the top surface of the steps is provided with an air cannon, and the air cannon is arranged in twelve rows and five columns.

[0021] The waste is transported to the air-lock feeding mechanism by the conveying belt. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a control flow schematic diagram of the utility model;

[0024] Figure 3 It is a front view of the left valve plate and the rotating shaft connecting structure of the utility model;

[0025] Figure 4 It is a top view of the tooth block and the limiting block connecting structure of the utility model;

[0026] Figure 5 It is a partial sectional view of the pre-combustion furnace and the hydraulic push rod connecting structure of the utility model.

[0027] In the figure: 1, pre-combustion furnace; 2, air-lock feeding mechanism; 201, first air-lock valve plate; 202, second air-lock valve plate; 203, transmission part; 204, stock bin; 205, distributing valve; 206, screw feeder; 207, left valve plate; 208, right valve plate; 209, motor; 210, vertical shaft; 211, threaded rod; 212, moving block; 213, rotating shaft; 214, gear; 215, tooth block; 216, first supporting block; 217, second supporting block; 218, connecting rod; 219, limiting block; 3, decomposition furnace; 4, stepped pushing mechanism; 5, hydraulic push rod; 6, air cannon; 7, conveying belt. DETAILED DESCRIPTION

[0028] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the person skilled in the art without making creative labor are within the protection scope of the present utility model.

[0029] In the embodiments, the first air locking valve plate and the second air locking valve plate are arranged in a staggered manner. Figures 1-5 A multi-stage control type pre-combustion furnace is disclosed, which comprises a pre-combustion furnace 1 having an inlet end and an outlet end, an air locking feeding mechanism 2 arranged at the inlet end of the pre-combustion furnace 1, a decomposition furnace 3 communicated with the outlet end of the pre-combustion furnace 1, and a stepped pushing mechanism 4 arranged on the inner bottom surface of the pre-combustion furnace 1.

[0030] The air locking feeding mechanism 2 comprises a first air locking valve plate 201, a second air locking valve plate 202, a transmission member 203 and a bunker 204.

[0031] The pre-combustion furnace 1 is internally communicated with a waste material entering channel.

[0032] The pre-combustion furnace 1 is internally communicated with branches of a tertiary air pipe.

[0033] The decomposition furnace 3 is provided with a tertiary air pipe at the right side thereof.

[0034] The first air locking valve plate 201 and the second air locking valve plate 202 each comprise a left valve plate 207 and a right valve plate 208.

[0035] Through the mutual embedding of the left valve plate 207 and the right valve plate 208, the high-temperature air can be locked to achieve better pre-combustion effect.

[0036] The transmission member 203 comprises a motor 209, the output end of the motor 209 is provided with a vertical shaft 210, the top of the vertical shaft 210 is fixedly connected with a threaded rod 211, the threaded rod 211 is divided into two sections and the threads of the two sections are oppositely arranged, and the outer sides of the threads of the two sections of the threaded rod 211 are threadedly connected with a moving block 212, the interiors of the two left valve plates 207 and right valve plates 208 are fixedly connected with a rotating shaft 213, the outer sides of the four rotating shafts 213 are fixedly connected with a gear 214, the four gears 214 are engaged with a toothed block 215, the opposite sides of the two moving blocks 212 are fixedly connected with two first supporting blocks 216, the opposite sides of the four toothed blocks 215 are fixedly connected with a second supporting block 217, and the interiors of the first supporting block 216 and the second supporting block 217 on the same side are rotatably connected with a same connecting rod 218;

[0037] The vertical shaft 210 can be rotated through the motor 209;

[0038] The back surfaces of the four toothed blocks 215 are fixedly connected with a limiting block 219, and the outer side of the four limiting blocks 219 is slidably connected with a same bin 204;

[0039] The toothed block 215 can be limited in the moving direction through the limiting block 219;

[0040] Further comprising a material conveying belt 7 for conveying waste materials into the air locking feeding mechanism 2, the number of the screw material conveyers 206 is two, and the distribution valve 205 has two output ends and is connected with the two screw material conveyers 206 in communication;

[0041] The waste materials can be transported into the air locking feeding mechanism 2 through the material conveying belt 7;

[0042] The bottom of the precombustion furnace 1 is arranged in a stepped manner, the precombustion furnace 1 is provided with a hydraulic push rod 5 and an air cannon 6, the output end of the hydraulic push rod 5 is arranged at the top surface of the steps in the precombustion furnace 1, each step surface in the precombustion furnace 1 except the top surface of the steps is provided with an air cannon 6, and the air cannons 6 are arranged in twelve rows and five columns;

[0043] The waste materials can be tumbled through the air cannons 6 and the hydraulic push rod 5 through the stepped arrangement, so that the precombustion effect on the surface of the waste materials is better.

[0044] Working principle:

[0045] First step: waste is transported to the air-locked feeding mechanism 2 by the conveying belt 7, then the motor 209 is started, the motor 209 drives the threaded rod 211 to rotate through the vertical shaft 210, the threaded rod 211 drives the top moving block 212 to move down through the first supporting block 216, the second supporting block 217 and the connecting rod 218, so that the two tooth blocks 215 on the top move to the opposite side, and then the two tooth blocks 215 on the top drive the top gear 214 to rotate, and then the two tooth blocks 214 on the top drive the two rotating shafts 213 on the top to rotate, so that the left valve plate 207 and the right valve plate 208 on the top are closed, and the waste is blocked, at the same time, the threaded rod 211 drives the bottom moving block 212 to rise, and then the bottom moving block 212 drives the two tooth blocks 215 on the bottom to move to the opposite side through the first supporting block 216, the second supporting block 217 and the connecting rod 218, and then the two tooth blocks 215 on the bottom drive the two tooth gears 213 on the bottom to rotate, so that the two rotating shafts 213 on the bottom drive the left valve plate 207 and the right valve plate 208 on the bottom to open, so that the waste is discharged to the distributing valve 205 through the hopper 204, and then the waste is input into the same pre-combustion furnace 1 through the two screw conveyors 206.

[0046] Second step: when the waste falls to the bottom of the pre-combustion furnace 1, the waste is pushed to the second step on the ladder shape through the hydraulic push rod 5, and then the waste is pushed through the air cannon 6, so that the waste is rolled and pre-combusted through the ladder shape.

[0047] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such a process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0048] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-stage feedstock regulating pre-combustion furnace, comprising a pre-combustion furnace (1) having a feedstock inlet end and a feedstock outlet end, characterized in that: The pre-combustion furnace (1) is provided with an air-lock feeding mechanism (2) at the feeding end, and a decomposition furnace (3) is communicated with the discharging end of the pre-combustion furnace (1), and a stepped pushing mechanism (4) is arranged on the inner bottom surface of the pre-combustion furnace (1). The air-lock feeding mechanism (2) comprises a first air-lock valve plate (201), a second air-lock valve plate (202), a transmission member (203) and a bunker (204), the first air-lock valve plate (201) and the second air-lock valve plate (202) are arranged in an upper-lower spaced manner, the transmission member (203) is used for driving the first air-lock valve plate (201) and the second air-lock valve plate (202) to be cyclically opened to access waste materials and output waste materials to the bunker (204), the bunker (204) is provided with a distributing valve (205) therein, the distributing valve (205) is communicated with a screw feeder (206) at the output end, and the output end of the screw feeder (206) is communicated with the pre-combustion furnace (1).

2. The multi-stage regulating pre-combustion furnace of claim 1, wherein: The first air-lock valve plate (201) and the second air-lock valve plate (202) each comprise a left valve plate (207) and a right valve plate (208), and the left valve plate (207) and the right valve plate (208) are arranged in an L-shaped manner on the opposite sides and are mutually embedded.

3. The multi-stage regulating pre-combustion furnace of claim 2, wherein: The transmission member (203) comprises a motor (209), the output end of the motor (209) is provided with a vertical shaft (210), the top of the vertical shaft (210) is fixedly connected with a threaded rod (211), the threaded rod (211) is divided into two sections, the threads of the two sections are oppositely arranged, the outer sides of the threads of the two sections of the threaded rod (211) are threadedly connected with moving blocks (212), the interiors of the two left valve plates (207) and the two right valve plates (208) are fixedly connected with rotating shafts (213), the outer sides of the four rotating shafts (213) are fixedly connected with gears (214), the four gears (214) are engaged with toothed blocks (215), the opposite sides of the two moving blocks (212) are fixedly connected with two first supporting blocks (216), the opposite sides of the four toothed blocks (215) are fixedly connected with second supporting blocks (217), and the interiors of the first supporting blocks (216) and the second supporting blocks (217) on the same side are rotatably connected with a same connecting rod (218).

4. The multi-stage regulating pre-combustion furnace of claim 3, wherein: The back surfaces of the four toothed blocks (215) are fixedly connected with limiting blocks (219), and the outer sides of the four limiting blocks (219) are slidably connected with a same bunker (204).

5. The multi-stage regulating pre-combustion furnace of claim 4, wherein: The air-lock feeding mechanism (2) is further provided with a conveying belt (7) for conveying waste materials into the air-lock feeding mechanism (2), the screw feeders (206) are two in number, and the distributing valve (205) has two output ends and is communicated with the two screw feeders (206).

6. The multi-stage regulating pre-combustion furnace of claim 1, wherein: The bottom of the pre-combustion furnace (1) is arranged in a stepped manner, the pre-combustion furnace (1) is provided with hydraulic push rods (5) and air cannons (6), the output end of the hydraulic push rod (5) is arranged at the top surface of the steps in the pre-combustion furnace (1), each step surface of the pre-combustion furnace (1) except the top surface of the steps is provided with an air cannon (6), and the air cannons (6) are arranged in twelve rows and five columns.

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