Cement kiln for solid waste treatment

Abstract

The utility model discloses a cement kiln for solid waste treatment, which comprises a furnace body, an inner cavity of the furnace body comprises a furnace front cavity and a furnace rear cavity, the furnace front cavity is communicated with the furnace rear cavity, the upper end face of the furnace body is provided with a feed port, the feed port is communicated with the furnace front cavity, a feed pipe is arranged between the furnace front cavity and the furnace rear cavity, and the feed pipe is obliquely arranged. One end of the feeding pipe is connected with the feeding port, the other end of the feeding pipe is communicated with the furnace rear cavity, a discharging port is formed in one side of the furnace rear cavity, the bottom of the furnace rear cavity is in an inverted cone shape, the discharging port is located at the lowermost end of the inverted-cone-shaped bottom of the furnace rear cavity, and a discharging baffle is arranged at the discharging port. Through the design that the furnace inner cavity is divided into the furnace front cavity and the furnace rear cavity, heat is mainly gathered in the furnace rear cavity, equipment at the furnace front cavity and the like are not prone to damage, and incinerated materials can be discharged through the discharging port and conveyed into the decomposing furnace through an external conveying device.

Description

Technical Field

[0001] This utility model relates to the field of cement kilns, and in particular to a cement kiln for solid waste treatment. Background Technology

[0002] Cement rotary kilns belong to the category of building materials equipment and are a type of lime kiln. Rotary kilns can be classified according to the materials they process: cement rotary kilns, metallurgical and chemical rotary kilns, and lime rotary kilns. Cement kilns are mainly used for calcining cement clinker and are divided into two main categories: dry-process cement kilns and wet-process cement kilns.

[0003] Existing cement kiln designs often feature a single internal cavity. Because the temperature inside the kiln is frequently very high, the requirements for its internal components are very demanding, making them prone to damage. To address these issues, a solution is proposed below. Utility Model Content

[0004] The purpose of this invention is to provide a cement kiln for solid waste treatment, which has the advantage of extending the service life of the equipment inside the cement kiln.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A cement kiln for solid waste treatment includes a furnace body. The inner cavity of the furnace body includes a front furnace cavity and a rear furnace cavity, which are connected. A feed inlet is provided on the upper end face of the furnace body, which is connected to the front furnace cavity. A feed pipe is provided between the front furnace cavity and the rear furnace cavity. The feed pipe is inclined, with one end connected to the feed inlet and the other end connected to the rear furnace cavity. A discharge port is provided on one side of the rear furnace cavity. The bottom of the rear furnace cavity is inverted conical, and the discharge port is located at the lowest point of the inverted conical bottom of the rear furnace cavity. A discharge baffle is provided at the discharge port.

[0007] Preferably, the furnace body is provided with an air inlet, which communicates with the furnace front cavity, and a fan is provided at the air inlet for supplying air into the furnace body.

[0008] Preferably, the side wall of the furnace front cavity is also provided with an observation hole and a manhole. The observation hole is provided with a transparent cover plate, and the manhole is provided with a hole cover plate. The observation hole is used to penetrate the inner cavity of the furnace, and the manhole is used to enter and exit the furnace.

[0009] Preferably, the output shaft of the hydraulic cylinder is connected to the discharge baffle, and the hydraulic cylinder is used to pull the discharge baffle to change the opening and closing state of the discharge port.

[0010] Preferably, the inner wall of the furnace body is coated with a heat insulation layer.

[0011] The beneficial effects of this utility model are as follows: by setting up a front chamber and a rear chamber, the area where the actual waste is burned is set in the rear chamber, and the temperature in the front chamber is relatively low, which is used to set up structures and components such as observation windows and fans. This can effectively prevent heat loss in the furnace body and better extend the service life of the components. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0013] Attached reference numerals: 1. Furnace body; 2. Front chamber of furnace; 3. Rear chamber of furnace; 4. Feed pipe; 5. Discharge baffle; 6. Blower; 7. Observation hole; 8. Manhole; 9. Hydraulic cylinder. Detailed Implementation

[0014] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model's concept should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.

[0015] like Figure 1 As shown, a cement kiln for solid waste treatment includes a furnace body 1. An insulation layer is cast into the inner layer of the furnace body 1 by means of casting. The insulation layer is made of existing insulation materials. Depending on the properties of the insulation material, a cement layer can be cast into the inner side of the insulation material to give the insulation material a longer service life.

[0016] The furnace body 1 has an internal cavity comprising a front chamber 2 and a rear chamber 3, which are connected by a small window. Depending on requirements, a window plate or similar device can be installed at the small window to reduce heat loss from the rear chamber 3. The rear chamber 3 is used to incinerate externally transported waste, and its interior is maintained at a high temperature. A feed pipe 4 is installed between the front chamber 2 and the rear chamber 3. The feed pipe 4 is inclined, with its lower end near the rear chamber 3. A feed inlet is located on the upper surface of the furnace body 1, communicating with the front chamber 2. The higher end of the feed pipe 4 is connected to the feed inlet. External waste enters the feed pipe 4 through the feed inlet and slides along the feed pipe 4 into the rear chamber 3 for incineration.

[0017] The bottom of the rear chamber 3 is inverted cone shape. The material produced by combustion will slide along the bottom surface of the rear chamber 3 to the bottom of the inverted cone. A discharge port is set at the bottom of the discharge port, and a baffle is set on the discharge port. When the baffle is removed from the discharge port, the material after combustion in the rear chamber 3 can be removed from the discharge port and sent to the subsequent decomposition furnace by the external conveying device.

[0018] A hydraulic cylinder 9 is installed at the bottom of the furnace body 1. The hydraulic cylinder 9 can also be replaced by other components that can provide linear power, such as a pneumatic cylinder or an electric push rod. The output shaft of the hydraulic cylinder 9 is connected to the discharge baffle 5, which can drive the discharge baffle 5 to move back and forth, thereby controlling the opening and closing state of the discharge port.

[0019] A blast vent is provided on the furnace body 1, and the blast vent communicates with the front chamber 2 of the furnace. A blower 6 is installed at the blast vent. After the blower 6 is started, air can be sent into the rear chamber 3 through a small window between the front chamber 2 and the rear chamber 3 of the furnace to ensure the oxygen content in the rear chamber 3, so that waste can be continuously burned in the rear chamber 3.

[0020] An observation hole 7 and a manhole 8 are also provided on the side wall of the furnace front chamber 2. The observation hole 7 can be fitted with a transparent cover, such as glass, because observation is required. The manhole 8 is only used after the furnace body 1 has stopped working. The cover plate for sealing the manhole 8 is made of heat-insulating material to detect heat dissipation when the furnace body 1 is in use.

[0021] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cement kiln for solid waste treatment, comprising a furnace body (1), characterized in that, The inner cavity of the furnace body (1) includes a front furnace cavity (2) and a rear furnace cavity (3), which are connected. The upper end face of the furnace body (1) is provided with a feed inlet, which is connected to the front furnace cavity (2). A feed pipe (4) is provided between the front furnace cavity (2) and the rear furnace cavity (3). The feed pipe (4) is inclined. One end of the feed pipe (4) is connected to the feed inlet, and the other end of the feed pipe (4) is connected to the rear furnace cavity (3). A discharge port is provided on one side of the rear furnace cavity (3). The bottom of the rear furnace cavity (3) is inverted cone shape. The discharge port is located at the lowest point of the inverted cone bottom of the rear furnace cavity (3). A discharge baffle (5) is provided at the discharge port.

2. The cement kiln for solid waste treatment according to claim 1, characterized in that, The furnace body (1) is provided with an air inlet, which is connected to the furnace front cavity (2). A fan (6) is provided at the air inlet, which is used to send air into the furnace body (1).

3. A cement kiln for solid waste treatment according to claim 1, characterized in that, The side wall of the furnace front cavity (2) is also provided with an observation hole (7) and a manhole (8). The observation hole (7) is provided with a transparent cover plate, and the manhole (8) is provided with a hole cover plate. The observation hole (7) is used to penetrate the inner cavity of the furnace body (1), and the manhole (8) is used to enter and exit the furnace body (1).

4. A cement kiln for solid waste treatment according to claim 1, characterized in that, The bottom of the furnace body (1) is provided with a hydraulic cylinder (9). The output shaft of the hydraulic cylinder (9) is connected to the discharge baffle (5). The hydraulic cylinder (9) is used to pull the discharge baffle (5) to change the opening and closing state of the discharge port.

5. A cement kiln for solid waste treatment according to claim 1, characterized in that, The inner wall of the furnace body (1) is coated with a heat insulation layer.

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