Circulating fluidized bed incineration device

Abstract

The utility model relates to the technical field of solid waste treatment, and provides a circulating fluidized bed incinerator which comprises a combustion chamber, an air distribution plate is arranged on the lower portion of the combustion chamber, bed materials are arranged on the air distribution plate, a feeding pipe is arranged on the side wall of the upper portion of the combustion chamber, and a smoke exhaust pipe is arranged at the top of the combustion chamber. A connecting pipe is arranged at one end of the top of the preheating furnace and communicated with a smoke exhaust pipe, a movable plate is arranged in the preheating furnace, telescopic rods are arranged on the periphery of the bottom of the movable plate, springs are arranged on the telescopic rods in a sleeving mode, and a vibration motor is arranged at the bottom of the movable plate. By arranging the preheating chamber on the side of the combustion chamber, the combustion efficiency of the combustion chamber can be greatly improved, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid waste treatment, in particular to a circulating fluidized bed incineration device. Background Art

[0002] Circulating fluidized bed incinerator is mainly used for the treatment of solid waste. Its basic structure is to lay inert particles of a certain thickness and a certain size range in the furnace as a heat carrier, such as quartz sand, and blow air of a certain pressure through the bottom air distribution plate. When the air flow velocity through the fluidized bed reaches the critical fluidization velocity, the solid particles in the bed roll up and down in the bed to form fluidization. At present, circulating fluidized bed incinerator is mainly used for garbage treatment. After the garbage is added from the top or side of the furnace, it is mixed with the high-temperature heat carrier and air flow in the bed, and the garbage is fully dried and heated. During incineration, the bed is in a bubbling fluidization state. The combustion in the fluidized bed is combustion in a bubbling state. When the air flow velocity through the fluidized bed reaches the terminal velocity, the solid particles in the bed fill the entire furnace. In this process, the garbage burns strongly to form fly ash; the unburned garbage particles and inert bed materials are taken out of the combustion chamber by the hot air flow and returned to the bed after passing through the cyclone separator, so that the unburned particles continue to be circulated and burned.

[0003] In order to improve the performance of circulating fluidized bed incinerators, a large number of improvements have been made to circulating fluidized bed incinerators in the prior art. For example, Chinese Patent No. CN215675210U discloses a circulating fluidized bed waste incinerator, including a combustion chamber, a combustion-supporting device, and a residue collection device. The combustion-supporting device is arranged on the left side of the combustion chamber, and the residue collection device is arranged on the right side of the combustion chamber. A ash cleaning device is arranged on the top of the combustion chamber, and a combustion table is fixedly connected to the bottom of the combustion chamber. A feed port is provided on the surface of the combustion chamber, and a slag outlet is provided at the bottom of the combustion chamber. The combustion-supporting device includes a support rod, and the support rod is arranged on the left side of the combustion chamber. The utility model can better collect the residue by arranging a residue collection device, so that it can be collected in a semi-closed manner, so as to achieve the purpose of reducing the diffusion of dust and residue. By arranging a ash cleaning device to clean the inner wall of the combustion chamber, it is convenient for the combustion chamber to work more effectively and for a longer time, and avoid the problem that there is a lot of internal dust, which is attached to the inner wall of the chamber and is difficult to clean and affects the normal operation of the device; however, the improvement method has limited improvement on the combustion efficiency of the fluidized bed. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a circulating fluidized bed incineration device to address the deficiencies of the prior art. By arranging a preheating chamber on the side of the combustion chamber, the combustion efficiency of the combustion chamber can be greatly improved and the cost can be saved.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A circulating fluidized bed incineration device comprises a combustion chamber, an air distribution plate is arranged at the lower part of the combustion chamber, bed material is arranged on the air distribution plate, a feed pipe is arranged on the upper side wall of the combustion chamber, a smoke exhaust pipe is arranged on the top and also includes a preheating furnace connected with the feed pipe, a connecting pipe is arranged at one end of the top of the preheating furnace, the connecting pipe is connected to the smoke exhaust pipe, a movable plate is arranged inside the preheating furnace, telescopic rods are arranged around the bottom of the movable plate, springs are sleeved on the telescopic rods, and a vibration motor is arranged at the bottom of the movable plate.

[0007] Furthermore, a fixing bar 1 is symmetrically installed on the outer side of the middle part of the combustion chamber, and a fixing rod 3 is arranged on the outer side of the two fixing bars 1. A hydraulic cylinder 1 is movably mounted on both sides of the fixing rod 3, and the top end of the hydraulic cylinder 1 is hinged to both sides of the outer end of the preheating furnace.

[0008] Furthermore, two fixing bars 2 are symmetrically installed on the outer side of the upper part of the combustion chamber, and fixing rods 2 are arranged at positions corresponding to the inner sides of the fixing bars 2 on both sides of the preheating furnace, and the ends of the fixing rods 2 are movably connected to the fixing bars 2.

[0009] Furthermore, a telescopic tube is provided at the discharge end of the preheating furnace, the telescopic tube is sleeved on the outside of the feed pipe, and a feed port is provided at the top of the preheating furnace.

[0010] Furthermore, a gate is provided inside the feed pipe.

[0011] Furthermore, a slag discharge port is arranged on the side of the middle portion of the combustion chamber.

[0012] Furthermore, an air intake pipe is arranged on the side wall of the combustion chamber, and the air intake pipe is connected to an air distribution plate.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. The utility model sets a preheating furnace on the side of the combustion chamber, and the high-temperature gas generated by the incineration in the combustion chamber can be introduced into the preheating furnace to preliminarily dry the domestic garbage. In addition, a vibration motor is set at the bottom of the movable plate to increase the efficiency of the preliminary drying of the domestic garbage. The moisture content of the domestic garbage after the preliminary drying is greatly reduced, thereby increasing its combustion efficiency in the fluidized bed combustion chamber, saving energy and protecting the environment.

[0015] 2. In order to increase the convenience of using the preheating furnace, a fixed bar 1 is symmetrically installed on the outside of the combustion chamber, a fixed rod 3 is installed on the outside of the two fixed bars 1, a hydraulic cylinder 1 is movably sleeved on both sides of the fixed rod 3, a fixed rod 1 is fixedly installed at both ends of one side of the preheating furnace, and the top of the hydraulic cylinder 1 is hinged to the fixed rod 1, that is, the preheating furnace and the hydraulic cylinder 1 are in a rotational connection relationship, and in addition, two fixed bars 2 are symmetrically installed on the upper part of the combustion chamber, and fixed rods 2 are arranged at positions corresponding to the inner sides of the two fixed bars on both sides of the preheating furnace, and the ends of the two fixed rods are also rotationally connected to the two fixed bars; a telescopic tube is arranged at the discharge end of the preheating furnace, and the telescopic tube is sleeved on the outside of the feed pipe. With the above-mentioned structural arrangement, when the hydraulic cylinder 1 is extended, it will drive one side of the preheating furnace to rise, and then the domestic garbage in the preheating furnace will enter the combustion furnace through the telescopic tube and the feed pipe, which is more flexible and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0020] Legend: 1. Combustion chamber; 101. Smoke exhaust pipe; 102. Air intake pipe; 103. Valve; 104. Connecting pipe; 105. Slag discharge port; 106. Air distribution plate; 2. Fixing bar one; 201. Hydraulic cylinder one; 202. Fixing rod one; 203. Preheating furnace; 204. Feeding port; 205. Telescopic pipe; 206. Feeding pipe; 207. Fixing bar two; 208. Fixing rod two; 209. Fixing rod three; 210. Gate; 3. Movable plate; 301. Vibration motor; 302. Telescopic rod; 303. Spring. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments; it should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. In the following description, many specific details are set forth to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, so the utility model is not limited to the limitations of the specific embodiments of the following public specification.

[0022] Example 1: See Figure 1-4As shown, the utility model provides a circulating fluidized bed incineration device, including a combustion chamber 1, an air distribution plate 106 is arranged at the lower part of the combustion chamber 1, an air inlet pipe 102 is arranged on the side wall of the combustion chamber 1, the air inlet pipe 102 is connected to the air distribution plate 107 to supply air to the fluidized bed, bed material 107 is arranged on the air distribution plate 106, a feeding pipe 206 is arranged on the upper side wall for feeding domestic garbage, and a feeding port can also be arranged on the other side as needed for feeding bed material, etc., a smoke exhaust pipe 101 is arranged on the top, a valve 103 is arranged on the smoke exhaust pipe 101, and a slag discharge port 105 is arranged on the middle side at a position above the bed material 107 for discharging slag after incineration.

[0023] It also includes a preheating furnace 203 connected to the feeding pipe 206, a connecting pipe 104 is set at one end of the top of the preheating furnace 203, the connecting pipe 104 is connected to the smoke exhaust pipe 101, and a movable plate 3 is arranged inside the preheating furnace 203. Telescopic rods 302 are fixed around the bottom of the movable plate 3, and springs 303 are sleeved on the telescopic rods 302. A vibration motor 301 is fixedly installed at the center of the bottom of the movable plate 3, so that turning on the vibration motor 301 can drive the movable plate 3 to vibrate.

[0024] A fixing bar 2 is symmetrically installed on the outer side of the middle of the combustion chamber 1, and a fixing rod 3 209 is installed on the outer sides of the two fixing bars 2. A hydraulic cylinder 201 is movably mounted on both sides of the fixing rod 3 209. A fixing rod 202 is fixedly installed at both ends of one side of the preheating furnace 203, and the top of the hydraulic cylinder 201 is hinged to the fixing rod 202.

[0025] Two fixing bars 207 are symmetrically installed on the outer side of the upper part of the combustion chamber 1, and fixing rods 208 are arranged at the corresponding positions on both sides of the preheating furnace 203 and the inner sides of the fixing bars 207, and the ends of the fixing rods 208 are movably connected to the fixing bars 207.

[0026] A telescopic tube 205 is provided at the discharge end of the preheating furnace 203, and the telescopic tube 205 is sleeved on the outside of the feed pipe 206, so that the telescopic tube 205 can move relatively along the feed pipe 206, and a feed port 204 is provided at the top of the preheating furnace 203. A gate 210 is provided inside the feed pipe 206, and the gate 210 in this embodiment is an electric gate.

[0027] The operating principle of the utility model is: domestic garbage enters the preheating furnace 203 through the feed port 204, the valve 103 on the smoke exhaust pipe 101 is closed, and the high-temperature gas generated by the combustion in the combustion chamber 1 is introduced into the preheating furnace 203 through the connecting pipe 104, and then the vibration motor 301 is turned on to heat and preheat the domestic garbage on the movable plate 3 during the vibration process. On the one hand, the high-temperature gas in the combustion chamber 1 can be efficiently recycled, and the garbage can be preliminarily heated and dehumidified. After the preheating is completed, the hydraulic cylinder 201 is controlled to extend, and the electric gate 210 is opened at the same time. The preheated domestic garbage enters the combustion chamber 1 through the telescopic tube 205 and the feed pipe 206 for incineration. It is convenient and flexible to use.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A circulating fluidized bed incineration device, comprising a combustion chamber (1), an air distribution plate (106) being arranged at the lower part of the combustion chamber (1), a bed material (107) being arranged on the air distribution plate (106), a feed pipe (206) being arranged at the upper side wall of the combustion chamber (1), and a smoke exhaust pipe (101) being arranged at the top; characterized in that: It also includes a preheating furnace (203) connected to the feeding pipe (206), a connecting pipe (104) is provided at one end of the top of the preheating furnace (203), the connecting pipe (104) is connected to the smoke exhaust pipe (101), a movable plate (3) is provided inside the preheating furnace (203), telescopic rods (302) are provided around the bottom of the movable plate (3), a spring (303) is sleeved on the telescopic rod (302), and a vibration motor (301) is provided at the bottom of the movable plate (3).

2. A circulating fluidized bed incineration device according to claim 1, characterized in that: A fixing bar one (2) is symmetrically mounted on the outer side of the middle of the combustion chamber (1), and fixing rods three (209) are arranged on the outer sides of the two fixing bars one (2). A hydraulic cylinder one (201) is movably mounted on both sides of the fixing rod three (209), and the top end of the hydraulic cylinder one (201) is hinged to both sides of the outer end of the preheating furnace (203).

3. A circulating fluidized bed incineration device according to claim 1, characterized in that: Two fixing bars (207) are symmetrically mounted on the outer side of the upper portion of the combustion chamber (1), and fixing rods (208) are arranged on both sides of the preheating furnace (203) at positions corresponding to the inner sides of the fixing bars (207), and the ends of the fixing rods (208) are movably connected to the fixing bars (207).

4. A circulating fluidized bed incineration device according to claim 1, characterized in that: A telescopic tube (205) is provided at the discharge end of the preheating furnace (203), and the telescopic tube (205) is sleeved on the outside of the feed pipe (206). A feed port (204) is provided at the top of the preheating furnace (203).

5. A circulating fluidized bed incineration device according to claim 4, characterized in that: A gate (210) is provided inside the feed pipe (206).

6. A circulating fluidized bed incineration device according to claim 1, characterized in that: A slag discharge port (105) is provided on the side of the middle portion of the combustion chamber (1).

7. A circulating fluidized bed incineration device according to claim 1, characterized in that: An air intake pipe (102) is provided on the side wall of the combustion chamber (1), and the air intake pipe (102) is connected to an air distribution plate (106).

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