CN209801961U - novel solid waste screening and drying device - Google Patents

Abstract

the utility model discloses a novel solid waste screening and drying device, which comprises a feeding mechanism, a material drying mechanism and a material screening mechanism which are arranged in the same shell; the bottom of the shell is provided with a shell support, the upper part of the shell is provided with a detachable window, the bottom of the front section of the shell is provided with an air inlet, and the top end of the rear section of the shell is provided with a hot air outlet; the material drying mechanism comprises an electric heating plate, an air inlet fan, a vibrating plate and a material baffle plate; the material screening mechanism comprises a screening roller, a screen underflow collecting tank, a screen overflow collecting funnel and a roller motor; the utility model reduces the investment of other drying devices by arranging the material drying mechanism and the material screening mechanism in the same shell; the air inlet and the hot air outlet are arranged to help hot air to fully dry the materials, and the drying device has the advantages of high drying efficiency and convenience in operation.

Description

A New Type of Solid Waste Screening and Drying Device

technical field

The utility model relates to the technical field of waste treatment equipment, in particular to a novel solid waste screening and drying device.

Background technique

With the acceleration of my country's urbanization process, the increase of urban population and the improvement of residents' living standards, the generation of municipal solid waste has also increased sharply, becoming a serious social problem. At present, the annual growth rate of urban waste in my country is as high as 7% to 9%. Urban waste occupies a large amount of land, affects the urban landscape, and causes irreversible damage to land resources; landfill leachate pollutes water bodies, and incineration produces a large amount of harmful gases. Affecting the atmospheric environment, the combustible components in landfill gas are fire hazards; a large number of harmful organisms are produced in garbage dumps, threatening people's health.

At present, my country's garbage disposal generally adopts three methods: landfill, incineration and composting. The most important way of urban waste disposal is landfill, accounting for more than 70% of the total disposal volume; followed by high-temperature composting, accounting for about 20%; incineration treatment accounts for a small proportion. Before landfill, incineration and composting of garbage, it is necessary to separate the resources that can be used through screening, and then carry out unified treatment on the screened garbage. Among them, garbage drying is more prominent in landfill and incineration. important.

The existing solid waste treatment and screening equipment is generally in the form of a combination of components, which is relatively complicated. A complete set of screening equipment needs to be equipped with a series of components, such as: feeding machine, screening cylinder, conveyor belt, vibrating screen, drying device, packing machines and other equipment. Most of the solid waste treatment and screening process has the problem of high moisture content of the garbage, which causes the moisture on the surface of the solid waste to make the fine particles agglomerate or adhere to the coarse particles, which is not suitable for sieving, and the moisture content of the garbage gradually decreases. The viscous force decreases correspondingly, which is beneficial to sorting and recycling; when the solid waste has a high mud content, a little moisture will easily make the fine particles agglomerate; research shows that simple dry-wet separation will significantly improve the sorting efficiency , the moisture content has an important influence in the screening and sorting process;

The solid waste sieved by the existing technology has the problem of high moisture content, which affects the screening effect of solid waste. For the treatment of solid waste with high moisture content, it can only be dried before sieving. Finally, it needs to be transferred to screening equipment, which is inefficient and inconvenient. Therefore, there is a need for improvement.

Utility model content

The purpose of this utility model is to provide a new type of solid waste screening and drying device to solve the above problems.

The utility model realizes above-mentioned purpose through following technical scheme:

A new type of solid waste screening and drying device, including a feeding mechanism, a material drying mechanism and a material screening mechanism arranged in the same housing;

The feeding mechanism includes a material conveyor belt and a conveyor belt support frame; the material conveyor belt is arranged on the top of the conveyor belt support frame;

The bottom of the housing is provided with a housing bracket, the upper part of which is provided with an opening and disassembly window, the bottom of the front section is provided with an air inlet, and the top of the rear section is provided with a hot air outlet, and its head end is connected to the end of the material conveyor belt;

The material drying mechanism includes an electric heating plate, an air intake fan, a vibrating plate, and a material baffle; the electric heating plate is arranged at the bottom of the front section in the housing, and a heating power source electrically connected to it is provided below it; The air inlet fan is arranged on the air inlet and is located below the electric heating plate; the vibrating plate is arranged on the top of the electric heating plate, and a vibrating motor connected to it is provided on one side of the vibrating plate; the material baffle Vertically arranged at the end of the vibrating plate, one side of which is provided with a baffle motor drivingly connected to it;

The material screening mechanism includes a screening drum, an undersize collection tank, an oversize collection funnel, and a drum motor; The baffles are in contact; the undersize collecting tank is arranged at the bottom of the screening drum; the oversize collecting funnel is arranged under the end of the screening drum; the drum motor is arranged outside the end of the housing , and drive connection with the screening drum.

Further, the material conveying belt adopts a spiral conveying belt.

Further, an exhaust fan is externally connected to the hot air outlet.

Further, an activated carbon deodorizing layer is also provided at the end of the hot air outlet.

The beneficial effect of the utility model is that a material drying mechanism and a material screening mechanism are arranged in the same housing, which saves the process that needs to be carried out in the two equipments separately in the past, reduces the input of additional drying equipment, and reduces the material transfer process. The cost incurred in the operation is more convenient; the housing is provided with an air inlet and a hot air outlet, the air inlet is located at the bottom of the front section of the housing, and the hot air outlet is located at the top of the middle and rear section of the housing, The flow direction of the hot air makes full use of the heat generated by the material drying mechanism to dry the solid waste materials in the shell, with high drying efficiency and further utilization of resources, and an activated carbon deodorizing layer is set at the hot air outlet to filter out the waste generated during the working process of the equipment. odor; a material baffle is provided, and the material baffle is arranged between the material drying mechanism and the material screening to control the material entering the material screening mechanism from the material drying mechanism, greatly reducing The amount of material entering the material screening mechanism due to insufficient drying reduces the length of the electric heating plate, thereby reducing the length of the equipment and reducing the cost.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the schematic diagram of material drying mechanism of the present utility model;

Fig. 3 is the schematic diagram of material screening mechanism of the present utility model;

Fig. 4 is the work flowchart of the utility model.

1. Feeding mechanism; 11. Material conveyor belt; 12. Conveyor belt support frame; 2. Shell; 21. Shell bracket; 22. Opening and disassembly window; 23. Air inlet; 24. Hot air outlet; 25. Activated carbon Deodorizing layer; 3. Material drying mechanism; 31. Electric heating plate; 32. Heating power supply; 33. Air intake fan; 34. Vibration plate; 35. Vibration motor; 36. Material baffle; 37. Baffle motor; 38 . Temperature and humidity sensor; 39. Heating and drying system controller; 4. Material screening mechanism; 41. Screening drum; 42. Undersize collection tank; 43. Oversize collection funnel.

Detailed ways

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings of the utility model are in simplified form and use inaccurate ratios, which are only used to facilitate and clearly illustrate the purpose of the utility model embodiment.

As shown in Figures 1 to 3, a new type of solid waste screening and drying device includes a feeding mechanism 1, a material drying mechanism 3 and a material screening mechanism 4 arranged in the same housing 2;

The feeding mechanism 1 includes a material conveyor belt 11 and a conveyor belt support frame 12; the material conveyor belt 11 adopts a spiral conveyor belt, which is arranged on the top of the conveyor belt support frame 12;

The bottom of the housing 2 is provided with a housing bracket 21, wherein the upper part is provided with an opening and disassembly window 22, and the bottom of the front section is provided with an air inlet 23, and the top of the rear section is provided with a hot air outlet 24, and its head end is connected with the material conveying The ends of the belts 11 are connected; the end of the hot air outlet 24 is provided with an activated carbon deodorizing layer 25, and the hot air is drawn out by an external exhaust fan; the detachable window 22 is convenient for the operator to observe the working conditions in the housing 2 at any time;

The material drying mechanism 3 includes an electric heating plate, an air intake fan, a vibrating plate, and a material baffle; the electric heating plate 31 is arranged at the bottom of the front section in the housing 2, and a heating element electrically connected to it is arranged below it. Power supply 32; the air intake fan 33 is arranged on the air inlet 23, and is located below the electric heating plate 31; the vibration plate 34 is arranged on the top of the electric heating plate 31, and one side thereof is provided with a drive connected vibrating motor 35; the material baffle 36 is vertically arranged at the end of the vibrating plate 34, and one side thereof is provided with a baffle motor 37 driven and connected to it; a temperature and humidity sensor 38, a heating and drying system controller are also included 39; the temperature and humidity sensor 38 is arranged in the middle part of the front section of the housing 2; the heating and drying system controller 39 is arranged on the side of the heating power supply 32; the heating and drying system controller 39 is respectively connected with the temperature and humidity The sensor 38 is electrically connected to the heating power supply 32;

The material screening mechanism 4 includes a screening drum 41, an undersize collection tank 42, an oversize collection funnel 43, and a drum motor 44; , the head end of which is in contact with the material baffle 36; the undersize collecting tank 42 is arranged at the bottom of the screening drum 41; the oversize collecting funnel 43 is arranged below the end of the screening drum 41 ; The drum motor is arranged outside the end of the housing 2, and is drivingly connected with the screening drum 41.

Working principle: the working process of the utility model is shown in Figure 4. Firstly, the material conveying step is carried out, and the solid waste material is transported to the housing 2 through the material conveyor belt 11 after preliminary sorting work;

Carry out material drying step then, solid waste material falls on described vibrating plate 34, and described vibrating motor 35 drives described vibrating plate 34 to vibrate up and down, and at the same time, described heating power supply 32 starts, makes described electric heating plate 31 heating, the air inlet fan 33 blows wind into the housing 2 from the air inlet 23, the solid waste fertilizer is taken away by the hot air while vibrating up and down, and the hot air passes through the housing 2 The exhaust fan is extracted from the hot air outlet 24, and the odor is filtered out by the activated carbon deodorization layer 25, and the heating and drying system controller 39 obtains the information of the temperature and humidity sensor 38, and controls the The heating power supply 32 thus adjusts the temperature of the front section of the housing 2 to 70-140° to achieve the best drying effect, and the material baffle plate 36 restricts the solid waste material on the vibration plate 34, when the housing 2. When the humidity in the previous section drops to the set value, the baffle motor 35 drives the material baffle 36 to rise, so that the dried solid waste material can enter the screening drum 41;

Then enter the material screening step, the solid waste material is screened by the screening drum 41, and the solid waste material after screening enters the undersize collection tank 42 and the oversize collection funnel 43 respectively, and the solid waste waste is completely dried , The moisture content of the material dried and screened by this equipment is low, which is beneficial to screening and collection, and greatly improves the efficiency of screening and drying.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their effects.

Claims (4)

1. A new type of solid waste screening and drying device, characterized in that: it includes a feeding mechanism, a material drying mechanism and a material screening mechanism arranged in the same housing; The feeding mechanism includes a material conveyor belt and a conveyor belt support frame; the material conveyor belt is arranged on the top of the conveyor belt support frame; The bottom of the housing is provided with a housing bracket, the upper part of which is provided with an opening and disassembly window, the bottom of the front section is provided with an air inlet, and the top of the rear section is provided with a hot air outlet, and its head end is connected to the end of the material conveyor belt; The material drying mechanism includes an electric heating plate, an air intake fan, a vibrating plate, and a material baffle; the electric heating plate is arranged at the bottom of the front section in the housing, and a heating power source electrically connected to it is provided below it; The air inlet fan is arranged on the air inlet and is located below the electric heating plate; the vibrating plate is arranged on the top of the electric heating plate, and a vibrating motor connected to it is provided on one side of the vibrating plate; the material baffle Vertically arranged at the end of the vibrating plate, one side of which is provided with a baffle motor drivingly connected to it; The material screening mechanism includes a screening drum, an undersize collection tank, an oversize collection funnel, and a drum motor; The baffles are in contact; the undersize collecting tank is arranged at the bottom of the screening drum; the oversize collecting funnel is arranged under the end of the screening drum; the drum motor is arranged outside the end of the housing , and drive connection with the screening drum. 2. A new type of solid waste screening and drying device according to claim 1, characterized in that: the material conveying belt adopts a spiral conveying belt. 3. A new type of solid waste screening and drying device according to claim 1, characterized in that: said hot air outlet is externally connected with an exhaust fan. 4. A new type of solid waste screening and drying device according to claim 1, characterized in that: an activated carbon deodorizing layer is also provided at the end of the hot air outlet.