Hearth structure for reverse pushing type grate furnace

Abstract

The utility model belongs to the technical field of incinerators, and particularly relates to a hearth structure for a reverse pushing type grate furnace, which comprises a furnace body, a feed port is arranged on the upper side wall of the furnace body, a feed bin is fixedly connected to the outer wall of the feed port, reverse pushing grates and fixed grates which are distributed in a staggered manner are mounted in a hearth of the furnace body, and the feed bin is fixedly connected with the feed port. The reverse pushing fire grate and the fixed fire grate are distributed in an inclined downward angle mode. The hydraulic rods stretch out and draw back periodically, so that the cutting blades below the two sets of pressing plates move up and down in a reciprocating mode, garbage on the reverse pushing fire grate is cut alternately, the garbage is crushed into small blocks, the contact face between the interior of the block garbage and the outside is increased, the overall combustion efficiency of a furnace body is improved, and compared with the prior art, the garbage cutting device has the advantages of being simple in structure and convenient to use. And the cutting force on the garbage is larger, the cutting effect is better, and the combustion efficiency of the garbage is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of incinerators, in particular to a furnace chamber structure for a reverse-pushing grate furnace. Background Art

[0002] After the garbage enters the incinerator, it is first dried on the first-stage grate of the internal grate furnace structure by using the heat of the furnace chamber, then incinerated on the second and third-stage grates, and finally burned out on the fourth-stage grate. The grates are distributed at an inclined downward angle and can continuously push the burning garbage downward during the reciprocating movement. There are many internal grate structures in the incinerator, including a mechanical reverse-pushing grate furnace structure.

[0003] In actual application, the existing mechanical reverse-pushing grate furnace structure has relatively large lumps of garbage and wrapped garbage in the relatively humid garbage on the first grate. The contact surface of this kind of caked garbage with air is relatively small, and the combustion of the part in the middle of the garbage that is not in contact with air is slow, affecting the overall combustion power generation efficiency of the incinerator.

[0004] The existing Chinese patent with the publication number CN218523565U discloses an incineration power generation grate furnace structure, including a furnace body; a feeding bin is arranged on the left side of the upper surface of the furnace body, and equally spaced fixed grates are fixedly installed on the top inner wall of the furnace body. By setting the telescopic partition component, when the reverse-pushing grate moves backward, the staggered thrust between the reverse-pushing grate and the fixed grate can be used to push the sheet-shaped lumpy garbage, and then the cutting blades equally spaced on the upper surface of the strip-shaped vertical plate are used to cut the lumpy garbage on the top group of reverse-pushing grates, so as to break the garbage into smaller pieces, increase the contact surface between the inside of the lumpy garbage and the outside, and thus accelerate the overall combustion efficiency of the incineration power generation furnace. In addition, the second hydraulic cylinder can drive the strip-shaped vertical plate to slide in the limit structure through telescoping, and the cutting blades can be retracted when incinerating conventional garbage, reducing the resistance of the garbage to displace on the grate and taking into account the practicability.

[0005] In view of the above and related existing technologies, the inventor believes that the following defects often exist: the device cuts the garbage when it flows through the cutting blades, and the cutting force is limited, and the cutting and crushing effect on the garbage needs to be further improved and requires improvement; therefore, a furnace chamber structure for a reverse-pushing grate furnace is proposed for the above problems. Summary of the Utility Model

[0006] In order to make up for the deficiencies of the existing technology and solve the above-mentioned technical problems, the utility model proposes a furnace chamber structure for a reverse-pushing grate furnace.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: A furnace chamber structure for a reverse-pushing grate furnace described in the utility model includes a furnace body. An inlet is provided on the upper side wall of the furnace body, and a feed bin is fixedly connected to the outer wall of the inlet. Inside the furnace chamber of the furnace body, reverse-pushing grates and fixed grates are installed in an alternating distribution. The fixed grates are fixedly connected to the furnace body, and the reverse-pushing grates are slidably connected to the furnace body. Both the reverse-pushing grates and the fixed grates are distributed at an inclined downward angle. A dividing assembly is installed inside the furnace chamber of the furnace body. The dividing assembly includes a rotating frame and a rotating driving device. The center of the rotating frame is rotatably installed inside the furnace body through a shaft. Pressing plates are respectively hinged at the upper and lower ends of the rotating frame. A plurality of dividing blades are fixedly connected to the bottom of the pressing plates. The shaft of the rotating frame penetrates the furnace body and is fixedly connected to a T-shaped connecting head. The rotating driving device is installed outside the furnace body and is connected to the connecting head to drive the rotating frame to rotate reciprocally. When garbage flows inside the furnace chamber of the furnace body, through the periodic telescopic movement of the hydraulic rod, the connecting head and the rotating frame are pushed to rotate reciprocally, so that the dividing blades under the two pressing plates move up and down reciprocally, and then alternately divide the garbage on the reverse-pushing grates, thereby crushing the garbage into smaller pieces, increasing the contact surface between the inside of the lumped garbage and the outside world, and further accelerating the overall combustion efficiency of the furnace body. Moreover, compared with the prior art, the cutting force on the garbage is greater, the dividing effect is better, and the combustion efficiency of the garbage is further improved.

[0008] Preferably, a plurality of the dividing blades are installed obliquely and equidistantly at the bottom of the pressing plate.

[0009] Preferably, the pressing plate includes an upper plate body and a lower plate body. A plurality of spring telescopic rods are fixedly connected to the relative ends of the upper plate body and the lower plate body. When the dividing blade cuts downward, it is buffered by the spring telescopic rod to avoid damage caused by excessive extrusion force with hard garbage.

[0010] Preferably, the rotating driving device includes a hydraulic rod. The hydraulic rod is fixedly installed outside the furnace body, and the driving end of the hydraulic rod is hinged to one end of the connecting head.

[0011] Preferably, an adjusting plate is hinged near the inlet inside the furnace body. An electric push rod is hinged to the relative side of the adjusting plate and the feed bin. By the telescopic movement of the electric push rod, the adjusting plate is driven to rotate, thereby controlling the amount of garbage entering at the inlet.

[0012] Preferably, a driving assembly is installed inside the furnace body. The driving assembly includes a plurality of stepped connecting frames. The multiple tops of the connecting frames are sequentially fixedly installed at the bottom of the reverse-pushing grates. Garbage is put into the feed bin, and the electric motor is operated to drive the reciprocating lead screw to rotate, so that the reverse-pushing grates and the fixed grates move in an alternating manner, thereby pushing the garbage on the reverse-pushing grates, and under the action of the overall inclined angle, the garbage moves downward.

[0013] Preferably, a sliding seat is fixedly connected to the bottom of the connecting frame, and the sliding seat is slidably connected to the furnace body.

[0014] Preferably, a reciprocating lead screw is threadedly connected to the center of the sliding seat. Connecting rods are welded to both ends of the reciprocating lead screw, and both ends of the connecting rods are rotatably connected to the furnace body.

[0015] Preferably, a motor is fixedly connected to the lower side wall of the furnace body, and the driving end of the motor penetrates through the furnace body and is fixedly connected to one end of the connecting rod. The motor drives the reciprocating lead screw to rotate, and the reciprocating lead screw drives the sliding seat, the connecting frame and the reverse pushing grate to reciprocate.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. In the present utility model, the hydraulic rods expand and contract periodically, causing the cutting blades under the two pressing plates to reciprocate up and down, thereby alternately cutting the garbage on the reverse pushing grate, thus crushing the garbage into smaller pieces, increasing the contact surface between the inside of the lumped garbage and the outside, and further accelerating the overall combustion efficiency of the furnace body. Moreover, compared with the prior art, the cutting force on the garbage is greater and the cutting effect is better, further improving the combustion efficiency of the garbage.

[0018] 2. When the cutting blade of the present utility model cuts downward, it is buffered by the spring telescopic rod to avoid damage caused by excessive extrusion force with hard garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a sectional view of the furnace body of the present utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the cutting component of the present utility model;

[0023] Figure 4 It is of the present utility model Figure 3 Structure diagram of A;

[0024] Figure 5 It is a schematic diagram of the structure of the driving component of the present utility model.

[0025] In the figure: 1. Furnace body; 2. Feeding port; 3. Feeding bin; 4. Reverse-pushing grate; 5. Fixed grate; 6. Partition assembly; 61. Rotating frame; 62. Pressing plate; 63. Partition blade; 64. Rotating drive device; 65. Connector; 621. Upper plate body; 622. Lower plate body; 623. Spring telescopic rod; 7. Adjusting plate; 8. Electric push rod; 9. Driving assembly; 91. Connecting frame; 92. Sliding seat; 93. Reciprocating lead screw; 94. Connecting rod; 10. Motor. Detailed implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1

[0028] Please refer to Figures 1 - 4 As shown in the figure, a furnace chamber structure for a reverse-pushing grate furnace includes a furnace body 1. A feeding port 2 is opened on the upper side wall of the furnace body 1. The outer wall of the feeding port 2 is fixedly connected with a feeding bin 3. In the furnace chamber of the furnace body 1, a reverse-pushing grate 4 and a fixed grate 5 are installed in an alternating manner. Both the reverse-pushing grate 4 and the fixed grate 5 are distributed at an inclined downward angle. A partition assembly 6 is installed in the furnace chamber of the furnace body 1. The partition assembly 6 includes a rotating frame 61 and a rotating drive device 64. The center of the rotating frame 61 is rotatably installed inside the furnace body 1 through a shaft. The upper and lower ends of the rotating frame 61 are respectively hinged with a pressing plate 62. A plurality of partition blades 63 are fixedly connected to the bottom of the pressing plate 62. The shaft of the rotating frame 61 penetrates the furnace body 1 and is fixedly connected with a T-shaped connector 65. The rotating drive device 64 is installed outside the furnace body 1 and is connected to the connector 65 for driving the rotating frame 61 to rotate reciprocally. When the garbage flows inside the furnace chamber of the furnace body 1, through the periodic telescopic movement of the hydraulic rod, the connector 65 and the rotating frame 61 are pushed to rotate reciprocally, so that the partition blades 63 under the two pressing plates 62 move up and down reciprocally, and then alternately cut the garbage on the reverse-pushing grate 4, thereby crushing the garbage into smaller pieces, increasing the contact surface between the inside of the lumped garbage and the outside world, and further accelerating the overall combustion efficiency of the furnace body 1. And compared with the prior art, the cutting force on the garbage is greater, the cutting effect is better, and the combustion efficiency of the garbage is further improved.

[0029] A plurality of partition blades 63 are installed obliquely and equidistantly at the bottom of the pressing plate 62.

[0030] The pressing plate 62 includes an upper plate body 621 and a lower plate body 622. A plurality of spring telescopic rods 623 are fixedly connected to the opposite ends of the upper plate body 621 and the lower plate body 622. When the dividing blade 63 cuts downward, it is buffered by the spring telescopic rods 623 to avoid damage caused by excessive extrusion force with hard garbage.

[0031] The rotary drive device 64 includes a hydraulic rod. The hydraulic rod is fixedly installed outside the furnace body 1, and the driving end of the hydraulic rod is hinged to one end of the connecting head 65.

[0032] Embodiment 2

[0033] Comparing with Embodiment 1, please refer to Figure 5 As shown, the present invention provides another implementation manner. A regulating plate 7 is hinged near the feed inlet 2 inside the furnace body 1. An electric push rod 8 is hinged to the opposite side of the regulating plate 7 and the feed bin 3. By the telescopic movement of the electric push rod 8, the regulating plate 7 is driven to rotate, thereby controlling the amount of garbage entering at the feed inlet 2.

[0034] A driving assembly 9 is installed inside the furnace body 1. The driving assembly 9 includes a plurality of stepped connecting frames 91. The multiple tops of the connecting frames 91 are sequentially fixedly installed at the bottom of the reverse pushing grate 4. When garbage is put into the feed bin 3 and the electric motor drives the reciprocating lead screw 93 to rotate, the reverse pushing grate 4 and the fixed grate 5 move in an alternating manner, thereby pushing the garbage on the reverse pushing grate 4, and under the action of the overall inclination angle, the garbage moves downward.

[0035] The bottom of the connecting frame 91 is fixedly connected with a sliding seat 92, and the sliding seat 92 is slidably connected to the furnace body 1.

[0036] A reciprocating lead screw 93 is threadedly connected to the center of the sliding seat 92. Connecting rods 94 are welded to both ends of the reciprocating lead screw 93, and both ends of the connecting rods 94 are rotatably connected to the furnace body 1.

[0037] The lower side wall of the furnace body 1 is fixedly connected with a motor 10, and the driving end of the motor 10 penetrates the furnace body 1 and is fixedly connected to one end of the connecting rod 94. The electric motor drives the reciprocating lead screw 93 to rotate, and the reciprocating lead screw 93 drives the sliding seat 92, the connecting frame 91 and the reverse pushing grate 4 to reciprocate.

[0038] For those skilled in the art, all the electrical components in this case are connected to their adapted power supplies through wires, and appropriate controllers should be selected according to the actual situation and electrically connected to the hydraulic rod, the electric push rod 8 and the motor 10 to meet the control requirements. For the specific connection and control sequence, the electrical connection should be completed according to the sequence of the working order of each electrical component in the following working principle. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be made.

[0039] It should be noted that: Since the furnace structure and components for the reverse-pushing grate furnace in this solution are the same as those of the existing reverse-pushing grate furnace, not all existing components are described in this solution, and only some improved parts are described.

[0040] Working principle: Put garbage into the feeding bin 3, operate the motor to drive the reciprocating lead screw 93 to rotate, so that the reverse-pushing grate 4 and the fixed grate 5 move in an alternating manner, thereby pushing the garbage on the reverse-pushing grate 4, and under the action of the overall inclination angle, the garbage moves downward.

[0041] When the garbage flows inside the furnace of the furnace body 1, the hydraulic rod expands and contracts periodically, pushing the connecting head 65 and the rotating frame 61 to rotate reciprocally, so that the dividing blades 63 under the two sets of pressing plates 62 move up and down reciprocally, thereby alternately dividing the garbage on the reverse-pushing grate 4, thus crushing the garbage into smaller pieces, increasing the contact surface between the inside of the lumped garbage and the outside world, thereby accelerating the overall combustion efficiency of the furnace body 1, and compared with the prior art, the cutting force on the garbage is greater and the dividing effect is better, further improving the combustion efficiency of the garbage.

[0042] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A furnace structure for a reverse grate furnace, comprising a furnace body (1), characterized in that: The upper side wall of the furnace body (1) is provided with a feed port (2), the outer wall of the feed port (2) is fixedly connected to a feed bin (3), the furnace chamber of the furnace body (1) is provided with staggered reverse grate (4) and fixed grate (5), the fixed grate (5) is fixedly connected to the furnace body (1), the reverse grate (4) is slidably connected to the furnace body (1), the reverse grate (4) and the fixed grate (5) are both distributed at an oblique downward angle, the furnace chamber of the furnace body (1) is provided with a splitting assembly (6), the splitting assembly (6) comprises a rotating frame ( 61) and a rotary drive device (64), the center of the rotary frame (61) is rotatably mounted inside the furnace body (1) via an axis, the upper and lower ends of the rotary frame (61) are respectively hinged with a pressure plate (62), the bottom of the pressure plate (62) is fixedly connected with a plurality of dividing blades (63), the axis of the rotary frame (61) passes through the furnace body (1) and is fixedly connected with a T-shaped connector (65), the rotary drive device (64) is mounted outside the furnace body (1) and is connected to the connector (65) for driving the rotary frame (61) to reciprocate.

2. The furnace structure for a reverse grate furnace according to claim 1, characterized in that: A plurality of dividing blades (63) are installed at an angle and at equal intervals on the bottom of the pressing plate (62).

3. The furnace structure for a reverse grate furnace according to claim 1, characterized in that: The pressing plate (62) comprises an upper plate body (621) and a lower plate body (622), and a plurality of spring telescopic rods (623) are fixedly connected to opposite ends of the upper plate body (621) and the lower plate body (622).

4. The furnace structure for a reverse grate furnace according to claim 1, characterized in that: The rotary drive device (64) comprises a hydraulic rod, which is fixedly mounted outside the furnace body (1), and a driving end of the hydraulic rod is hinged to one end of a connecting head (65).

5. The furnace structure for a reverse push grate furnace according to claim 1, characterized in that: An adjusting plate (7) is hingedly connected inside the furnace body (1) near the feed port (2), and an electric push rod (8) is hingedly connected on the side of the adjusting plate (7) opposite to the feed bin (3).

6. The furnace structure for a reverse grate furnace according to claim 1, characterized in that: A driving assembly (9) is installed inside the furnace body (1), and the driving assembly (9) comprises a plurality of stepped connecting frames (91), and a plurality of top ends of the connecting frames (91) are fixedly installed in sequence on the bottom of the reverse thrust grate (4).

7. The furnace structure for a reverse grate furnace according to claim 6, characterized in that: The bottom of the connecting frame (91) is fixedly connected to a sliding seat (92), and the sliding seat (92) is slidably connected to the furnace body (1).

8. The furnace structure for a reverse push grate furnace according to claim 7, characterized in that: A reciprocating screw (93) is threadedly connected at the center of the sliding seat (92), connecting rods (94) are welded at both ends of the reciprocating screw (93), and both ends of the connecting rod (94) are rotatably connected to the furnace body (1).

9. The furnace structure for a reverse grate furnace according to claim 8, characterized in that: A motor (10) is fixedly connected to the lower side wall of the furnace body (1), and a driving end of the motor (10) passes through the furnace body (1) and is fixedly connected to one end of a connecting rod (94).

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