CN220047313U - Spray water recovery filter tank and waste heat recovery equipment - Google Patents

Abstract

The utility model discloses a spray water recovery filter box and waste heat recovery equipment, which comprises a collection box, wherein a filter device is arranged in the collection box, and impurities containing waste heat moisture are subjected to solid-liquid separation through the filter device, and heat exchange is performed on a liquid part, so that the waste heat recovery efficiency can be improved; the filter device comprises a conveying device and an extrusion device, the conveying device comprises a conveying belt, the surface of the conveying belt is provided with a filter hole, the extrusion device comprises two extrusion rollers which are arranged in parallel up and down, the two extrusion rollers are respectively positioned on two sides of the conveying belt, the conveying belt is controlled by an electric control device to move and the extrusion rollers rotate, the extrusion rollers can extrude the conveying belt and impurities containing moisture on the surface in the rotating process, and the solid-liquid separation process is accelerated. The utility model can carry out rapid filter pressing on impurities containing heat, reduces heat loss and improves waste heat recovery efficiency.

Description

Spray water recovery filter box and waste heat recovery equipment

Technical field

The utility model relates to the technical field of separation equipment, in particular to a spray water recovery filter box and waste heat recovery equipment.

Background technique

For grain drying, the energy loss is large and the tail gas temperature is low, but the enthalpy value is high and contains a large amount of heat that can be recycled; however, the grain drying tail gas contains a large amount of fine dust and cannot be directly passed into the drying area. Heat exchange takes place within the thermal equipment.

The exhaust gas can be purified by dust reduction treatment with cyclone separation equipment. Part of the purified exhaust gas can be directly pumped into the heat exchange equipment for heat exchange; some impurities containing heat can also be heat exchanged after being filtered. Improve the efficiency of waste heat recovery; however, the currently used filtration devices are passive, especially for the fine impurities produced by grain drying, their water absorption rate is high, and the traditional static filtration device cannot fully filter out the moisture containing heat inside. , resulting in heat loss.

Utility model content

The purpose of this utility model is to solve the shortcomings existing in the prior art, and the proposed spray water recovery filter box and waste heat recovery equipment can quickly filter impurities containing heat, reduce heat loss, and improve efficiency. Efficiency of waste heat recovery.

In order to achieve the above purpose, the present utility model adopts the following technical solutions:

The spray water recovery filter box includes a collection box. A filtering device is provided in the collection box. The filtering device includes a conveying device and an extrusion device. The conveying device includes a conveyor belt, and the conveyor belt has filter holes on its surface. , the extrusion device includes two extrusion rollers arranged in parallel up and down. The two extrusion rollers are located on both sides of the conveyor belt. The bottom end of the collection box is fixedly connected with a partition, and the partition connects the collection box. It is divided into a first collection area and a second collection area, the extrusion device is located in the first collection area, and a cleaning device for cleaning the conveyor belt is provided in the second collection area.

Preferably, the conveying device further includes three conveying rollers, and the three conveying rollers enclose a triangular area.

Preferably, an arc-shaped filtrate collection cover is fixedly connected to the inner wall of the collection box, and the filtrate collection cover is located below the extrusion device.

Preferably, the cleaning device includes a cleaning rotating shaft, and the surface of the cleaning rotating shaft is covered with a cleaning roller brush that fits the surface of the conveyor belt.

Preferably, the collection box is fixedly connected to a drainage pipe on one side of the first collection area.

A kind of waste heat recovery equipment, including the above-mentioned recovery filter box, and also including a cyclone separation device. The recovery filter box is located below the cyclone separation device, and a flexible insulation cover is set on the outside of the connection between the two; the recovery filter box An evaporation heat exchanger is provided on one side, and the recovery filter box is connected with the evaporation heat exchanger.

Compared with the existing technology, the beneficial effects of this utility model are:

By setting up a conveying device and an extrusion device to perform dynamic press filtration of mixed impurities containing waste heat, solid-liquid separation can be quickly achieved, and the liquid part can be heat exchanged, which can realize the recovery and utilization of this part of the heat and improve the waste heat recovery efficiency; and through It is carried out by press filtration, the filtration time is short, the liquid recovery rate is high, heat loss is avoided, and the efficiency of waste heat recovery is further improved.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram of the spray water recovery filter box proposed by the utility model;

Figure 2 is a schematic top view of the spray water recovery filter box proposed by the present utility model;

Figure 3 is a schematic cross-sectional structural diagram of the spray water recovery filter box proposed by the present invention along line A-A;

Figure 4 is a schematic three-dimensional structural diagram of the waste heat recovery equipment proposed by the present utility model.

In the picture: 100. Collection box; 110. Partition plate; 120. Drainage pipe; 200. Conveying device; 210. Conveying roller; 220. Conveyor belt; 300. Extrusion device; 310. Driving shaft; 320. Extrusion sleeve ; 400. Filtrate collection cover; 500. Cleaning device; 600. Cyclone separation equipment; 700. Evaporation heat exchanger.

Implementation

In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation modes of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to facilitate a thorough understanding of the present invention. However, the present utility model can be implemented in many other ways different from those described here. Those skilled in the art can make similar improvements without violating the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation disclosed below. .

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation manner.

Referring to Figures 1 to 3, the spray water recovery filter box includes a collection box 100. A filtering device is provided in the collection box 100. The filtering device performs solid-liquid separation on impurities containing waste heat moisture, and performs heat exchange on the liquid part. , can improve the waste heat recovery efficiency; wherein the filtering device includes a conveying device 200 and an extruding device 300. The conveying device 200 includes a conveying belt 220. The conveying belt 220 has filter holes on its surface. The extruding device 300 includes two extruding devices arranged side by side up and down. rollers. Two squeeze rollers are located on both sides of the conveyor belt 220. The electronic control device controls the movement of the conveyor belt 220 and the rotation of the squeeze rollers. During the rotation, the squeeze rollers can squeeze the conveyor belt 220 and the moisture-containing materials on the surface. Impurities can accelerate the solid-liquid separation process, accelerate the liquid being pumped out of the filter box for heat exchange, improve the efficiency of heat exchange, shorten the heat exchange time, and reduce heat loss.

It should be noted here that the filter holes on the surface of the conveyor belt 220 are determined according to the size of the impurities that need to be filtered. For the exhaust gas from grain drying, the impurities are relatively fine and small in size, and smaller filter holes are needed for filtering. ; In addition, the extrusion roller includes a drive shaft 310 and an extrusion sleeve 320 set on the outside of the drive shaft 310. The two are designed to be detachable and can be replaced and maintained during the cleaning process, or according to different extrusion needs. Make adaptation adjustments.

A partition 110 is fixedly connected to the bottom end of the collection box 100. The partition 110 divides the collection box 100 into a first collection area and a second collection area. The extrusion device 300 is located in the first collection area, and the second collection area is provided with useful The cleaning device 500 for cleaning the conveyor belt 220; the liquid containing residual heat after being extruded by the extrusion device 300 enters the first collection area for collection. The cleaning device 500 can continuously clean the relatively dry residual impurities on the surface of the conveyor belt 220. Clean it and let it fall into the second collection area to achieve separate storage of solid and liquid.

The conveying device 200 also includes three conveying rollers 210. The three conveying rollers 210 enclose a triangular area. Refer to Figure 3. The conveying device 200 is not limited to the specific arrangement shape shown in Figure 3. By setting the three conveying rollers 210, it is possible to The conveyor belt 220 is limited and encloses a larger area for installing the extrusion device 300, ensuring sufficient space.

An arc-shaped filtrate collection cover 400 is fixedly connected to the inner wall of the collection box 100. The filtrate collection cover 400 is located below the extrusion device 300. The recessed position of the filtrate collection cover 400 is located below the extrusion device 300, and the liquid falls to the surface of the filtrate collection cover 400. And finally flows into the collection box 100 from both sides, avoiding direct dripping to the surface of the conveyor belt 220 below, causing loss and waste of liquid.

As a preferred cleaning method, the cleaning device 500 includes a cleaning rotating shaft. The surface of the cleaning rotating shaft is covered with a cleaning roller brush that fits the surface of the conveyor belt 220. The surface of the conveyor belt 220 can be cleaned during the rotation of the cleaning roller brush. Continuous cleaning can ensure that the surface of the conveyor belt 220 is clean and tidy, allowing relatively dry impurities to escape and avoid being mixed into the liquid and affecting subsequent heat exchange.

A drainage pipe 120 is fixedly connected to the side of the collection box 100 located in the first collection area. The drainage pipe 120 is located at the bottom end and is connected to the pump body for pumping the liquid containing waste heat into the heat exchange equipment to remove the waste heat. of recycling.

Referring to Figure 4, a waste heat recovery device includes the above-mentioned recovery filter box, and also includes a cyclone separation device 600. The recovery filter box is located below the cyclone separation device 600, and a flexible insulation cover is set on the outside of the connection between the two; An evaporation heat exchanger 700 is provided on one side of the recovery filter box. The recovery filter box is connected with the evaporation heat exchanger 700. The dry exhaust gas is dusted through the cyclone separation equipment 600, and the impurities containing waste heat and moisture fall to the collection box 100 below. Within, pressure filtration is performed to achieve solid-liquid separation, and the liquid containing waste heat is pumped into the evaporation heat exchanger 700 for low-temperature heating and heat exchange, thereby realizing recovery and utilization of waste heat, which is energy-saving and environmentally friendly.

Take the waste heat recovery of grain drying tail gas as an example; when the utility model is used, the dry tail gas is pumped into the cyclone separation equipment 600 for dust reduction, and the purified gas can be directly pumped into the evaporation heat exchanger 700 from the top opening. Low-temperature heat exchange is performed in the system. For impurities containing dust, the impurities are controlled to fall into the collection box 100 for pressure filtration to achieve solid-liquid separation. The liquid part is pumped into the evaporation heat exchanger 700 for heat exchange, which improves efficiency. Efficiency of waste heat recovery.

Through the above arrangement, the waste heat recovery of the heat of the impurity part can be improved, and the waste heat recovery efficiency can be improved; in addition, the part containing the impurity can be pressed and filtered in time for heat exchange, and the filtered liquid is pumped into the evaporation heat exchanger 700, which reduces the heat exchanger. The influence of the evaporation heat exchanger 700, and the use of pressure filtration, the filtration time is short and the heat loss is small.

The above are only preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed by the present utility model, implement the present utility model according to the present utility model. Novel technical solutions and utility model concepts, including equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims (6)

1. The spray water recovery filter box includes a collection box (100), and a filtering device is provided in the collection box (100), which is characterized by: The filtering device includes a conveying device (200) and an extruding device (300). The conveying device (200) includes a conveyor belt (220). The conveyor belt (220) has filter holes on its surface. The extruding device (300) includes two squeeze rollers arranged side by side up and down. The two squeeze rollers are located on both sides of the conveyor belt (220). The bottom end of the collection box (100) is fixedly connected with a partition (110). The partition (110) divides the collection box (100) into a first collection area and a second collection area, the extrusion device (300) is located in the first collection area, and a device for A cleaning device (500) for cleaning the conveyor belt (220). 2. The spray water recovery filter box according to claim 1, characterized in that the conveying device (200) further includes three conveying rollers (210), and the three conveying rollers (210) enclose a triangular area. . 3. The spray water recovery filter box according to claim 1, characterized in that an arc-shaped filtrate collection cover (400) is fixedly connected to the inner wall of the collection box (100), and the filtrate collection cover (400) is located at Below the extrusion device (300). 4. The spray water recovery filter box according to claim 1, characterized in that the cleaning device (500) includes a cleaning rotating shaft, and the surface of the cleaning rotating shaft is sleeved with a filter that fits the surface of the conveyor belt (220). Clean roller brush. 5. The spray water recovery filter box according to any one of claims 1 to 4, characterized in that a drainage pipe (120) is fixedly connected to one side of the first collection area of the collection box (100). 6. A waste heat recovery equipment, characterized in that it includes the recovery filter box according to any one of claims 1 to 5, and also includes a cyclone separation device (600), the recovery filter box is located below the cyclone separation device (600), A flexible insulation cover is set on the outside of the connection between the two; an evaporation heat exchanger (700) is provided on one side of the recovery filter box, and the recovery filter box is connected with the evaporation heat exchanger (700).