A general industrial solid waste incinerator feeding device

Abstract

The present invention discloses a general industrial solid waste incinerator feeding device, including a boiler, a cyclone separator and multiple hoppers are provided on one side of the boiler, a return pipe is provided at the bottom of the cyclone separator, a feed pipe is provided on the side wall of the boiler, the feed pipe is located above the return pipe, and belt conveyors are provided at the bottom of multiple hoppers, the belt conveyors intersect at the feed pipe mouth, an auxiliary feed mechanism for evenly spraying high-temperature particle flow is provided at the return pipe mouth, and an auxiliary mixing mechanism for auxiliary material mixing is provided on the feed pipe. This general industrial solid waste incinerator feeding device is provided with a baffle at the return pipe mouth, and the baffle rotates back and forth at the return pipe mouth under the action of the high-temperature particle flow and a spring, thereby changing the size of the return pipe mouth, so that the high-temperature particle flow is sprayed more evenly from the return pipe mouth, can be scattered and distributed in the boiler, and ensure its full combustion.

Description

Technical Field

[0001] The present invention relates to the technical field of solid waste incineration, and in particular to a general industrial solid waste incinerator feeding device. Background Art

[0002] The fuel composition of solid waste incineration boilers is complex, mainly consisting of two categories: general solid waste and biochemical sludge. General solid waste includes waste oil wax paper, waste cloth strips, foam, sponge, waste plastic, waste wood packaging boxes, waste cellulose tailings... With the continuous improvement of national policies on energy conservation and environmental protection, and the continuous improvement of monitoring methods, the energy-saving production of enterprises and the treatment of associated solid waste have become top priorities. The solid waste generated by enterprises can be treated by boiler incineration, and its energy can be used to generate steam for enterprise use. A large amount of raw coal can be saved in a year, and the storage area of solid waste and sludge can be reduced. At the same time, the environment is protected, and the "three-ization" treatment of solid waste (harmlessness, resource utilization, and reduction) is truly achieved, effectively realizing energy conservation and emission reduction.

[0003] Because solid waste and biochemical sludge have low calorific values and unstable composition, solid waste incinerators add coal at a weight ratio of less than 20% to stabilize combustion. However, the complex composition of the feed material, including biochemical sludge, can easily cause clogging in the feed pipe. To address this issue, we propose a general industrial solid waste incinerator feed device. Summary of the Invention

[0004] The object of the present invention is to provide a general industrial solid waste incinerator feeding device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a general industrial solid waste incinerator feeding device, comprising a boiler, a cyclone separator and multiple hoppers are provided on one side of the boiler, a return pipe is provided at the bottom of the cyclone separator, the end of the return pipe is connected to the side wall of the boiler, and the return pipe sends the incompletely burned particle flow into the boiler again, a feed pipe is provided on the side wall of the boiler, and the feed pipe is located above the return pipe, and belt conveyors are provided at the bottom of multiple hoppers, and the belt conveyors intersect at the mouth of the feed pipe, and an auxiliary feed mechanism for evenly spraying the high-temperature particle flow is provided at the mouth of the return pipe, and an auxiliary mixing mechanism for mixing auxiliary materials is provided on the feed pipe, and the auxiliary mixing mechanism is connected to the return pipe.

[0006] Preferably, the auxiliary feeding mechanism includes a baffle rotatably arranged at the mouth of the return pipe, a movable rod is arranged above the baffle, the movable rod movably passes through the return pipe, a guide sleeve is provided on the side wall of the boiler, the movable rod movably is arranged in the guide sleeve, a side plate is provided on the outside of the movable rod, a spring is fixedly provided on the side plate, the bottom of the spring is fixedly connected to the return pipe, the high-temperature particle flow in the return pipe pushes the baffle, and the spring drives the movable rod to press the baffle, and under the action of the high-temperature particle flow and the spring, the baffle rotates back and forth in the return pipe.

[0007] Preferably, the top end of the moving rod extends to the bottom of the feed pipe, and a knocking block is provided at the top end of the moving rod, and when the moving rod moves upward, the knocking block is driven to knock the bottom of the feed pipe.

[0008] Preferably, a roller is provided at the bottom end of the moving rod.

[0009] Preferably, the auxiliary mixing mechanism includes a plurality of connecting pipes arranged on the outside of the feed pipe, and the plurality of connecting pipes are connected to the feed pipe. A spiral pipe connected to the connecting pipe is arranged on the outside of the feed pipe, and the spiral pipe is connected to the return pipe. A part of the high-temperature particle flow in the return pipe enters the feed pipe through the spiral pipe and the connecting pipe.

[0010] Preferably, the plurality of connecting pipes are distributed in a spiral array outside the feed pipe.

[0011] Preferably, the end of the feed pipe close to the belt conveyor is in a trumpet shape.

[0012] Preferably, the axes of the feed pipe and the return pipe are parallel to each other, and both axes are coplanar with the central axis of the boiler.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention provides a baffle at the orifice of the return pipe. The baffle rotates back and forth at the orifice of the return pipe under the action of the high-temperature particle flow and the spring, thereby changing the size of the orifice of the return pipe, so that the high-temperature particle flow is ejected more evenly from the orifice of the return pipe and can be scattered and distributed in the boiler to ensure its full combustion.

[0015] 2. The present invention connects the feed pipe and the return pipe so that a part of the high-temperature particle flow in the return pipe enters the feed pipe through the spiral pipe. The high-temperature particle flow entering the feed pipe can promote the mixing of various combustion materials, so that the materials can achieve better combustion effects when entering the boiler. Moreover, since the high-temperature particle flow itself is in a high-temperature state, it can preheat the material in the feed pipe, making the material easier to burn when entering the boiler. When the high-temperature particle flow enters the feed pipe from the connecting pipe, it can drive the material to move, thereby effectively preventing the material from adhering to the pipe wall and preventing the feed pipe from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 For the present invention Figure 1 Another structural diagram;

[0018] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0019] Figure 4 It is a partial cross-sectional structural schematic diagram of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the feed pipe and the connecting pipe of the present invention.

[0021] In the figure: 1- boiler; 2- cyclone separator; 3- hopper; 4- return pipe; 5- feed pipe; 6- belt conveyor; 7- auxiliary feeding mechanism; 71- baffle; 72- moving rod; 73- guide sleeve; 74- side plate; 75- spring; 76- knock block; 77- roller; 8- auxiliary mixing mechanism; 81- connecting pipe; 82- spiral pipe. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5The present invention provides a technical solution: a feeding device for a general industrial solid waste incinerator, comprising a boiler 1, a cyclone separator 2 and a plurality of hoppers 3 provided on one side of the boiler 1, wherein the hoppers 3 are respectively provided with combustion materials, which are mainly general solid waste and biochemical sludge. The general solid waste includes waste oil wax paper, waste cloth strips, foam, sponge, waste plastic, waste wood packaging boxes, waste cellulose tailings... Since the calorific value of solid waste and biochemical sludge is low and the composition is unstable, in order to stabilize combustion, the solid waste incinerator will add coal with a weight ratio of <20%. A return pipe 4 is provided at the bottom of the cyclone separator 2, and the end of the return pipe 4 Connected to the side wall of the boiler 1, the return pipe 4 sends the incompletely burned particle flow back into the boiler 1. The side wall of the boiler 1 is provided with a feed pipe 5, and the feed pipe 5 is located above the return pipe 4. Belt conveyors 6 are provided at the bottom of multiple hoppers 3. The belt conveyors 6 intersect at the pipe mouth of the feed pipe 5. The material in the hopper 3 is transported to the pipe mouth of the feed pipe 5 through the belt conveyor 6, and enters the boiler 1 through the feed pipe 5. An auxiliary feeding mechanism 7 for evenly spraying the high-temperature particle flow is provided at the pipe mouth of the return pipe 4. An auxiliary mixing mechanism 8 for auxiliary material mixing is provided on the feed pipe 5, and the auxiliary mixing mechanism 8 is connected to the return pipe 4.

[0024] The auxiliary feeding mechanism 7 includes a baffle 71 rotatably arranged at the mouth of the return pipe 4, and a moving rod 72 is arranged above the baffle 71. The moving rod 72 movably passes through the return pipe 4, and a guide sleeve 73 is provided on the side wall of the boiler 1, so that the movement of the moving rod 72 is more stable. The moving rod 72 is movably arranged in the guide sleeve 73, and a side plate 74 is provided on the outside of the moving rod 72. A spring 75 is fixedly provided on the side plate 74, and the bottom of the spring 75 is fixedly connected to the return pipe 4. When the boiler 1 is working, the material is burned in the boiler 1, and the unburned material particles are typed into the return pipe 4 through the cyclone separator 2. The high-temperature particle flow in the return pipe 4 pushes the baffle 71, and the spring 75 drives the moving rod 72 to press the baffle 71. Therefore, under the action of the high-temperature particle flow and the spring 75, the baffle 71 rotates back and forth in the return pipe 4, thereby driving the moving rod 72 to move back and forth.

[0025] The top of the moving rod 72 extends to the bottom of the feed pipe 5, and a knocking block 76 is provided at the top of the moving rod 72. When the moving rod 72 moves upward, the moving rod 72 can drive the knocking block 76 to knock on the feed pipe 5, thereby assisting the material at the mouth of the feed pipe 5 to enter the boiler 1. When the boiler 1 is working, the high-temperature particle flow is continuous, and the moving rod 72 can be driven back and forth by the high-temperature particle flow and the spring 75, so that the moving rod 72 drives the knocking block 76 to continuously knock on the feed pipe 5, thereby achieving the effect of assisting feeding.

[0026] A roller 77 is provided at the bottom end of the moving rod 72, which can convert sliding friction into rolling friction, reduce the friction between the moving rod 72 and the baffle 71, and facilitate the baffle 71 to drive the moving rod 72 to move.

[0027] The auxiliary mixing mechanism 8 includes a plurality of connecting pipes 81 arranged on the outside of the feed pipe 5, and the plurality of connecting pipes 81 are connected to the feed pipe 5. A spiral pipe 82 connected to the connecting pipe 81 is arranged on the outside of the feed pipe 5, and the spiral pipe 82 is connected to the return pipe 4. A part of the high-temperature particle flow in the return pipe 4 enters the feed pipe 5 through the spiral pipe 82 and the connecting pipe 81, and the high-temperature particle flow enters the spiral pipe 82 through the return pipe 4, and then enters the feed pipe 5 from the spiral pipe 82 through the connecting pipe 81. The high-temperature particle flow entering the feed pipe 5 can promote the mixing of various combustion materials, so that the material can achieve a better combustion effect when entering the boiler 1, and since the high-temperature particle flow itself is in a high-temperature state, it can preheat the material in the feed pipe 5, so that the material is easier to burn when entering the boiler 1. When the high-temperature particle flow enters the feed pipe 5 from the connecting pipe 81, it can drive the material to move, thereby effectively preventing the material from adhering to the pipe wall and preventing the feed pipe 5 from being blocked.

[0028] Multiple connecting pipes 81 are distributed in a spiral array on the outside of the feed pipe 5. The high-temperature particle flow enters the feed pipe 5 from the connecting pipe 81 and advances in a spiral state in the feed pipe 5, which can not only drive the mixing of materials, but also push the materials from the feed pipe 5 into the boiler 1.

[0029] One end of the feed pipe 5 close to the belt conveyor 6 is in a trumpet shape, which facilitates the entry of materials into the feed pipe 5 .

[0030] The axes of the feed pipe 5 and the return pipe 4 are parallel to each other, and both axes are coplanar with the central axis of the boiler 1. Since the feed pipe 5 is arranged above the return pipe 4, when the material enters the boiler 1 from the feed pipe 5, the high-temperature particle flow in the return pipe 4 also enters the boiler 1, and when the material enters the boiler 1, the high-temperature particle flow can impact the material. Under the impact of the high-temperature particle flow, the material can not only be evenly distributed in the boiler 1, but also can be rapidly heated under the impact of the high-temperature particle flow and then fully burned, avoiding the occurrence of insufficient local combustion, so that the material can achieve a better combustion effect.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A general industrial solid waste incinerator feeding device, comprising a boiler (1), a cyclone separator (2) and a plurality of hoppers (3) provided on one side of the boiler (1), a return pipe (4) provided at the bottom of the cyclone separator (2), the end of the return pipe (4) being connected to the side wall of the boiler (1), and the return pipe (4) feeding an incompletely burned particle flow back into the boiler (1), characterized in that: The side wall of the boiler (1) is provided with a feed pipe (5), the feed pipe (5) is located above the return pipe (4), a plurality of belt conveyors (6) are provided at the bottom of the hoppers (3), the belt conveyors (6) intersect at the mouth of the feed pipe (5), an auxiliary feed mechanism (7) for uniformly ejecting the high-temperature particle flow is provided at the mouth of the return pipe (4), an auxiliary mixing mechanism (8) for auxiliary material mixing is provided on the feed pipe (5), and the auxiliary mixing mechanism (8) is connected to the return pipe (4); The auxiliary feeding mechanism (7) includes a baffle (71) rotatably arranged at the mouth of the return pipe (4), a moving rod (72) is arranged above the baffle (71), the moving rod (72) movably penetrates the return pipe (4), a guide sleeve (73) is arranged on the side wall of the boiler (1), the moving rod (72) is movably arranged in the guide sleeve (73), a side plate (74) is arranged on the outside of the moving rod (72), a spring (75) is fixedly arranged on the side plate (74), the bottom of the spring (75) is fixedly connected to the return pipe (4), the high-temperature particle flow in the return pipe (4) pushes the baffle (71), and the spring (75) drives the moving rod (72) to press the baffle (71), and under the action of the high-temperature particle flow and the spring (75), the baffle (71) reciprocates in the return pipe (4); The auxiliary mixing mechanism (8) comprises a plurality of connecting pipes (81) arranged outside the feed pipe (5), the plurality of connecting pipes (81) are all connected to the feed pipe (5), a spiral pipe (82) connected to the connecting pipe (81) is arranged outside the feed pipe (5), the spiral pipe (82) is connected to the return pipe (4), and a portion of the high-temperature particle flow in the return pipe (4) enters the feed pipe (5) through the spiral pipe (82) and the connecting pipe (81).

2. A general industrial solid waste incinerator feeding device according to claim 1, characterized in that: The top end of the moving rod (72) extends to the bottom of the feed pipe (5), and a knocking block (76) is provided at the top end of the moving rod (72). When the moving rod (72) moves upward, the knocking block (76) is driven to knock the bottom of the feed pipe (5).

3. A general industrial solid waste incinerator feeding device according to claim 2, characterized in that: A roller (77) is provided at the bottom end of the moving rod (72).

4. A general industrial solid waste incinerator feeding device according to claim 3, characterized in that: The plurality of connecting pipes (81) are distributed in a spiral array outside the feed pipe (5).

5. A general industrial solid waste incinerator feeding device according to claim 4, characterized in that: One end of the feed pipe (5) close to the belt conveyor (6) is in a bell-mouth shape.

6. A general industrial solid waste incinerator feeding device according to claim 5, characterized in that: The axes of the feed pipe (5) and the return pipe (4) are parallel to each other, and both axes are coplanar with the central axis of the boiler (1).

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