Sludge circulating fluidized bed incinerator

Abstract

The utility model discloses a sludge circulating fluidized bed incinerator which comprises an incineration unit, the incineration unit comprises an incinerator body, the outer wall of the incinerator body is fixedly communicated with an air inlet pipe, a coal feeding pipe and a slag discharging pipe, the top of the incinerator body is fixedly communicated with a smoke outlet pipe and a second feeding pipe, and the top of the second feeding pipe is fixedly communicated with a first feeding pipe. Sludge is extruded out of the discharging hole, when the special-shaped gear rotates till no tooth exists, the first rack loses limitation of the special-shaped gear, the spring rebounds to drive the cutting plate to reset, the extruded sludge is cut off, the sludge is extruded out of the feeding hole, the sludge is in a strip shape when entering the incinerator body, and then the sludge is cut off. According to the sludge incinerator, the sludge cannot enter the incinerator body in a large block mode, the problem that the interior of the large block of sludge is not completely incinerated is avoided, the cut-off and falling sludge can be scattered by the scattering blades when colliding with the continuously rotating scattering blades, the sludge is scattered and distributed into the incinerator, and the sludge cannot be accumulated at one position of the incinerator.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge incineration, in particular to a sludge circulating fluidized bed incinerator. Background Art

[0002] Sludge incineration is a common sludge disposal method. It can destroy all organic matter, kill all pathogens, and minimize the sludge volume. Sludge incineration can be used when the sludge's own combustion calorific value is high, the urban sanitation requirements are high, or the sludge contains high toxic substances and cannot be comprehensively utilized.

[0003] When sludge incineration is carried out, the sludge needs to be input into the incinerator. Some sludge with high viscosity will enter the incinerator in large lumps. The large lumps of sludge have the problem of incomplete internal combustion, which causes the sludge incineration efficiency to slow down. At the same time, when the sludge is input into the incinerator, it is easy to accumulate in one place in the incinerator, which will also cause the problem of slow incineration efficiency. Therefore, it can be improved. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing sludge circulating fluidized bed incinerator, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a sludge circulating fluidized bed incinerator, which is designed to solve the problem of "slow combustion efficiency and incomplete internal combustion of large pieces of sludge during incineration".

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a sludge circulating fluidized bed incinerator, comprising:

[0008] The incineration unit includes an incinerator main body, an air intake pipe, a coal feeding pipe, and a slag discharge pipe are fixedly connected to the outer wall of the incinerator main body, a smoke outlet pipe and a second feed pipe are fixedly connected to the top of the incinerator main body, a first feed pipe is fixedly connected to the top of the second feed pipe, a conveying roller is rotatably installed inside the second feed pipe, a first motor is fixedly installed on the outer wall of the second feed pipe, an output shaft of the first motor and the conveying roller are fixedly installed, a feed plate is fixedly installed at the bottom end of the second feed pipe, and a plurality of feed holes are opened on the feed plate;

[0009] The breaking up unit includes a second motor, which is fixedly mounted on the top of the incinerator body, and a gear is fixedly mounted on the bottom end of the output shaft of the second motor. A rectangular frame is fixedly mounted on the top of the inner wall of the incinerator body, and a first rack is slidably mounted on the outer wall of the rectangular frame. The gear is meshed with the first rack, and a connecting plate is fixedly mounted on one end of the first rack, and a spring is fixedly mounted on one side of the connecting plate. The other end of the spring away from the connecting plate is fixedly mounted on the rectangular frame, and a cutting plate is fixedly mounted on one side of the connecting plate. A breaking up component is provided at the bottom of the cutting plate.

[0010] As a preferred solution of the sludge circulating fluidized bed incinerator described in the utility model, the outer wall of the first motor output shaft is rotatably installed through the second feed pipe, and the outer wall of the second motor output shaft is rotatably installed through the incinerator body.

[0011] As a preferred solution of the sludge circulating fluidized bed incinerator described in the utility model, a through chute is provided inside the rectangular frame, and the cutting plate is slidably mounted with the rectangular frame through the through chute.

[0012] As a preferred solution of the sludge circulating fluidized bed incinerator described in the utility model, the heterogeneous gear is a gear with half teeth, and the cutting plate is attached to the bottom of the feed plate.

[0013] As a preferred solution of the sludge circulating fluidized bed incinerator described in the utility model, the scattering component includes scattering blades, a rotating rod is fixedly installed on the inner periphery of the scattering blades, the top of the rotating rod is rotatably installed with the feed plate, a second rack is fixedly installed at the bottom of the cutting plate, a gear is fixedly installed on the outer wall of the rotating rod, and the gear is meshed with the second rack.

[0014] As an optimal solution of the sludge circulating fluidized bed incinerator described in the utility model, wherein: a rectangular through groove is opened inside the rectangular frame, the rotating rod is located inside the rectangular through groove, a through hole slide groove is opened inside the rectangular frame, and the second rack is slidably plugged into the rectangular frame through the through hole slide groove.

[0015] Beneficial effects of the utility model:

[0016] 1. The second motor drives the gear to rotate, and the gear drives the first rack to move. The first rack drives the cutting plate to move through the connecting plate, and stretches the spring to open the discharge hole of the feed plate. At this time, the sludge is squeezed out from the discharge hole. When the gear rotates to the point where there are no teeth, the first rack loses the limit of the gear, and the spring rebounds to drive the cutting plate to reset, cutting off the squeezed sludge. By squeezing the sludge from the feed hole, the sludge is made into strips when entering the incinerator body. Then the sludge is cut off, so that large pieces of sludge will not enter the inside of the incinerator body, avoiding the problem of incomplete combustion of large pieces of sludge. Smaller sludge pieces also improve the efficiency of sludge incineration.

[0017] 2. When the sludge is cut, the second rack will be driven to move, thereby driving the gear to rotate. When the cutting plate reciprocates, the second rack will continue to drive the gear to rotate, thereby continuously driving the scattering blades to rotate. When the cut and fallen sludge collides with the continuously rotating scattering blades, it will be broken up by the scattering blades, and the sludge will be dispersed into the incinerator, so that the sludge will not accumulate in one place in the incinerator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of a sludge circulating fluidized bed incinerator proposed in the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the structure after removing part of the incinerator body;

[0021] Figure 3 for Figure 2 A schematic diagram of a top-view cross-sectional structure of ;

[0022] Figure 4 for Figure 1 Middle upward cross-sectional structural diagram;

[0023] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0024] Figure 6 for Figure 1 Schematic diagram of the structure after removing part of the second feeding pipe;

[0025] In the figure: 100, incineration unit; 200, scattering unit; 101, incinerator body; 102, air inlet pipe; 103, coal feeding pipe; 104, slag discharge pipe; 105, smoke outlet pipe; 106, first feed pipe; 107, second feed pipe; 108, conveying roller; 109, first motor; 110, feed plate; 201, second motor; 202, gear; 203, first rack; 204, connecting plate; 205, spring; 206, rectangular frame; 207, cutting plate; 208, scattering assembly; 208a, scattering blade; 208b, second rack; 208c, gear. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it designate a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0030] Reference Figure 1 -6. The utility model provides a sludge circulating fluidized bed incinerator, comprising:

[0031] The incineration unit 100 includes an incinerator body 101, and an air inlet pipe 102, a coal feeding pipe 103, and a slag discharge pipe 104 are fixedly connected to the outer wall of the incinerator body 101. Figure 1From the position of the middle slag discharge pipe, it can be known that the sludge is incinerated at a lower position of the incinerator main body 101. The top of the incinerator main body 101 is fixedly connected with a smoke outlet pipe 105 and a second feed pipe 107. One end of the smoke outlet pipe 105 can be connected to a smoke filter and waste heat recovery device. The top of the second feed pipe 107 is fixedly connected with a first feed pipe 106. A conveying roller 108 is rotatably installed inside the second feed pipe 107. A first motor 109 is fixedly installed on the outer wall of the second feed pipe 107. The output shaft of the first motor 109 and the conveying roller 108 are fixedly installed. A feed plate 110 is fixedly installed at the bottom end of the second feed pipe 107. A plurality of feed holes are opened on the feed plate 110. The sludge is squeezed out through the feed holes and the sludge is in strips, which is convenient for subsequent breaking up and miniaturization and dispersion of the sludge to the greatest extent.

[0032] The disintegration unit 200 includes a second motor 201, which is fixedly mounted on the top of the incinerator body 101. A gear 202 is fixedly mounted on the bottom end of the output shaft of the second motor 201. A rectangular frame 206 is fixedly mounted on the top of the inner wall of the incinerator body 101. A first rack 203 is slidably mounted on the outer wall of the rectangular frame 206. The gear 202 and the first rack 203 are meshed with each other. A connecting plate 204 is fixedly mounted on one end of the first rack 203. A spring 205 is fixedly mounted on one side of the connecting plate 204. The spring 205 is away from the connecting plate 20 4 is fixedly mounted on the rectangular frame 206, a cutting plate 207 is fixedly mounted on one side of the connecting plate 204, a breaking up assembly 208 is provided at the bottom of the cutting plate 207, and the sludge is incinerated at a lower position of the incinerator body 101. At the same time, the incinerator body 101 is provided with a partition at the bottom of the rectangular frame 206, and the partition is provided with a feed port at the position of the feed plate 110. The heat is separated by the partition of the incinerator body 101, and the smoke outlet pipe 105 is connected to the top of the partition of the incinerator body 101. The components of the breaking up unit 200 are all made of heat-resistant metal.

[0033] The outer wall of the output shaft of the first motor 109 is rotatably mounted through the second feed pipe 107, and the outer wall of the output shaft of the second motor 201 is rotatably mounted through the incinerator body 101. This facilitates the first motor 109 and the second motor 201 to drive the connected devices to rotate.

[0034] Furthermore, a through slot is provided inside the rectangular frame 206, and the cutting plate 207 is slidably mounted with the rectangular frame 206 through the through slot. The through slot guides the sliding of the cutting plate 207.

[0035] Furthermore, the different gear 202 is a gear with half teeth, and the cutting plate 207 is attached to the bottom of the feed plate 110. When the different gear 202 rotates to the gearless position and cooperates with the first rack 203, the first rack 203 loses its limit and is driven to reset by the stretched spring 205.

[0036] Furthermore, the disintegration assembly 208 includes a disintegration blade 208a. A rotating rod is fixedly mounted on the inner periphery of the disintegration blade 208a. The top of the rotating rod is rotatably mounted to the feed plate 110. A second rack 208b is fixedly mounted on the bottom of the cutting plate 207. A gear 208c is fixedly mounted on the outer wall of the rotating rod. The gear 208c meshes with the second rack 208b. The disintegration blade 208a disintegrates the extruded sludge and distributes it throughout the incinerator.

[0037] Furthermore, a rectangular through-slot is defined within the rectangular frame 206, the rotating rod is positioned within the rectangular through-slot, and a through-hole slide is defined within the rectangular frame 206, through which the second rack 208b is slidably connected to the rectangular frame 206. The rotating rod can rotate within the rectangular through-slot, while the rectangular frame 206 can slide on the outer wall of the rotating rod through the rectangular through-slot.

[0038] During use, the sludge is first fed into the second feed pipe 107 through the first feed pipe 106, and the first motor 109 drives the conveying roller 108 to rotate, transporting the sludge to the feed plate 110, and the sludge is squeezed into strips through the feed hole of the feed plate 110;

[0039] The second motor 201 drives the gear 202 to rotate, and the gear 202 drives the first rack 203 to move. The first rack 203 drives the cutting plate 207 to move through the connecting plate 204, and stretches the spring 205 to open the discharge hole of the feed plate 110. At this time, the sludge is squeezed out of the discharge hole. When the gear 202 rotates until there are no teeth, the first rack 203 loses the limit of the gear 202, and the spring 205 rebounds to drive the cutting plate 207 to reset, cutting off the squeezed sludge.

[0040] As the sludge is cut, the second rack 208b is driven to move, thereby driving the gear 208c to rotate. When the cutting plate 207 reciprocates, the second rack 208b will continue to drive the gear 208c to rotate, thereby continuously driving the scattering blades 208a to rotate. When the cut sludge collides with the continuously rotating scattering blades 208a, it will be broken up by the scattering blades 208a and dispersed into the interior of the incinerator body 101.

[0041] When the sludge is incinerated, coal is added to the bottom of the incinerator body 101 through the coal adding pipe 103, and the air inlet pipe 102 inputs air into the incinerator body 101 for coal combustion. The flue gas is discharged through the smoke outlet pipe 105. After the sludge is incinerated, it is discharged through the slag discharge pipe 104.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A sludge circulating fluidized bed incinerator, characterized by: include: The incineration unit (100) comprises an incinerator body (101), an air inlet pipe (102), a coal feeding pipe (103), and a slag discharge pipe (104) are fixedly connected to the outer wall of the incinerator body (101), a smoke outlet pipe (105) and a second feed pipe (107) are fixedly connected to the top of the incinerator body (101), a first feed pipe (106) is fixedly connected to the top of the second feed pipe (107), a conveying roller (108) is rotatably installed inside the second feed pipe (107), a first motor (109) is fixedly installed on the outer wall of the second feed pipe (107), an output shaft of the first motor (109) and the conveying roller (108) are fixedly installed, a feed plate (110) is fixedly installed at the bottom end of the second feed pipe (107), and a plurality of feed holes are provided on the feed plate (110); The disintegration unit (200) comprises a second motor (201), the second motor (201) is fixedly mounted on the top of the incinerator body (101), a gear (202) is fixedly mounted on the bottom end of the output shaft of the second motor (201), a rectangular frame (206) is fixedly mounted on the top of the inner wall of the incinerator body (101), a first rack (203) is slidably mounted on the outer wall of the rectangular frame (206), the gear (202) and the first rack (203) are meshed with each other, a connecting plate (204) is fixedly mounted on one end of the first rack (203), a spring (205) is fixedly mounted on one side of the connecting plate (204), the other end of the spring (205) away from the connecting plate (204) is fixedly mounted on the rectangular frame (206), a cutting plate (207) is fixedly mounted on one side of the connecting plate (204), and a disintegration component (208) is provided at the bottom of the cutting plate (207).

2. A sludge circulating fluidized bed incinerator according to claim 1, characterized in that: The outer wall of the output shaft of the first motor (109) is rotatably mounted through the second feed pipe (107), and the outer wall of the output shaft of the second motor (201) is rotatably mounted through the incinerator body (101).

3. A sludge circulating fluidized bed incinerator according to claim 2, characterized in that: A through-slide groove is provided inside the rectangular frame (206), and the cutting plate (207) is slidably mounted on the rectangular frame (206) via the through-slide groove.

4. A sludge circulating fluidized bed incinerator according to claim 3, characterized in that: The different gear (202) is a gear provided with half teeth, and the cutting plate (207) is attached to the bottom of the feed plate (110).

5. The sludge circulating fluidized bed incinerator according to claim 4, characterized in that: The scattering assembly (208) includes a scattering blade (208a), a rotating rod is fixedly installed on the inner periphery of the scattering blade (208a), the top end of the rotating rod is rotatably installed with the feed plate (110), a second rack (208b) is fixedly installed on the bottom of the cutting plate (207), and a gear (208c) is fixedly installed on the outer wall of the rotating rod, and the gear (208c) is meshed with the second rack (208b).

6. The sludge circulating fluidized bed incinerator according to claim 5, characterized in that: A rectangular through slot is provided inside the rectangular frame (206), the rotating rod is located inside the rectangular through slot, a through hole slide is provided inside the rectangular frame (206), and the second rack (208b) is installed in a sliding manner with the rectangular frame (206) through the through hole slide.

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