Hot air filtration-aided dehydration device of belt filter

Abstract

The utility model discloses a hot air filtration-aided dehydration device of a belt filter, belongs to mechanical equipment, and relates to a solid-liquid separation device. The utility model relates to a hot air filtration-aided dehydration device of a belt filter, which comprises an air feeder, a heater, belt filter filter cloth, a material loosening device, a lifting and moving mechanism and a hot air distribution cover, the air feeder is connected with the heater through a pipeline, the heater is communicated with the hot air distribution cover through a hot air pipeline, the hot air distribution cover is arranged on the lifting and moving mechanism, the lifting and moving mechanism is arranged on the filter cloth of the belt filter, and the material loosening device is arranged at the upper part of the filter cloth of the belt filter. By repeatedly loosening materials and controlling hot air distribution, energy consumption can be reduced, productivity can be improved, and product granularity can be protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical equipment relates to solid -liquid separation device, concretely relates to a belt filter hot air filter aid dewatering device. BACKGROUND

[0002] The solid -liquid separation of solid slurry of soda ash, baking soda, ammonium chloride, ammonium sulfate and other materials in the production process is carried out by the vacuum belt filter which is widely used in soda ash, fertilizer and other chemical industry, it has the advantages of high dewatering, not destroying material particle. The moisture content of solid products such as soda ash, baking soda, ammonium chloride, ammonium sulfate after treatment is generally between 15% and 18%, the material is seriously caked, at the same time, it causes great load to the subsequent drying equipment, the steam consumption is too large, the drying cost is high, and the product quality is easily affected.

[0003] In order to solve the above problems existing in the prior art, the utility model provides a belt filter hot air filter aid dewatering device. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a belt filter hot air filter aid dewatering device, which aims at improving productivity, reducing heat consumption in the product drying process, protecting product granularity and reducing operating cost.

[0005] In order to realize the above technical purpose, the utility model provides the following technical scheme:

[0006] A belt filter hot air filter aid dewatering device, including air blower, heater, belt filter cloth, material loosening device, lifting movement mechanism, hot air distribution cover, the air blower is connected with the heater through pipeline, the heater is communicated with the hot air distribution cover through hot air pipeline, the hot air distribution cover is arranged on the lifting movement mechanism, the lifting movement mechanism is arranged on the belt filter cloth, the upper portion of the belt filter cloth is provided with the material loosening device.

[0007] Further, the heater is a waste heat exchanger or an electric heater, which is used for heating the air transmitted by the air blower.

[0008] The top of the hot air distribution cover is uniformly provided with hot air distribution holes, the hot air distribution holes are communicated with the heater through hot air pipelines respectively, and the heated hot air is uniformly distributed on the upper portion of the material layer in the coverage range of the hot air distribution cover body through the distribution holes.

[0009] The hot air pipeline is a hose.

[0010] The lifting movement mechanism includes a support and a cylinder mounted on the support, the hot air distribution cover is mounted on the piston rod of the cylinder, and can be lifted and lowered under the action of the piston rod of the cylinder, so as to adjust the distance from the material layer.

[0011] The lifting moving mechanism comprises a support and a hydraulic cylinder installed on the support, the hot air distribution cover is installed on the hydraulic rod and can be lifted and lowered under the action of the hydraulic rod, and is used to control the distance from the material layer.

[0012] The material loosening device is a rake type material loosening device installed on the support frame, which is used to loosen the surface layer of the material from the original dense state by scratching.

[0013] Both sides of the filter cloth of the belt filter are provided with sliding rails, the bottom of the support of the lifting moving mechanism is provided with a pulley, and the lifting moving mechanism can move forward and backward.

[0014] The bottom of the support is provided with a pulley, and the material loosening device can move forward and backward.

[0015] The utility model discloses a fan is with the air of afterheating device ware or electric heater pressurization, through hot air pipeline sends into hot air distribution cover body, and hot air distribution cover is received the hot air of the air supply device and can be evenly distributed on the material layer upper portion in the distribution cover body through distribution hole, and hot air distribution cover is hung on the lifting moving mechanism steel frame, can rise and fall under the action of cylinder or hydraulic cylinder, through the distance control with material, play the compactness with material layer and the separation effect with material layer, can carry out the operation of before and after simultaneously, and material loosening device is a rake type material loosening device, and its function is to loosen the surface layer of the material from the original dense state by scratching, and through the operation of before and after, can improve the efficiency of loosening material.

[0016] Compared with the prior art, the utility model discloses repeatedly loosen the material, control hot air distribution, can reduce the energy consumption, improve the productivity, and protect the product granularity. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model;

[0018] In the drawing: 1-air supply fan, 2-heater, 3-hot air pipeline, 4-belt filter filter cloth, 5-material loosening device, 6-lifting moving mechanism, 7-hot air distribution cover. DETAILED DESCRIPTION

[0019] In order to achieve the above use purpose, the feasible implementation method is now combined with the attached Figure 1The utility model discloses a belt filter hot air assisted filter dewatering device mainly includes fan 1, heater 2, hot air pipeline 3, belt filter filter cloth 4, material loosening device 5, lifting movement mechanism 6, hot air distribution cover 7, fan 1 is connected with heater 2 through pipeline, and heater 2 is communicated with hot air distribution cover 7 through hot air pipeline 3, and hot air distribution cover 7 is arranged on lifting movement mechanism 6, and lifting movement mechanism 6 is arranged on belt filter filter cloth 4, and the upper portion of belt filter filter cloth 4 is provided with material loosening device 5.

[0020] In the material filtering process, hot air distribution cover 7 does reciprocating action under the action of lifting movement mechanism 6, and is pressed on the material to form a relatively sealed box, and the hot air is distributed on the material and has a certain pressure downward, and the material below belt filter filter cloth 4 has the suction effect of vacuum negative pressure system, and the moisture in the material is gasified under the action of heat and is sucked into the vacuum system under the action of negative pressure suction, thereby accelerating the dewatering process of the material, hot air distribution cover 7 is provided with a plurality of hot air pipeline 3 interfaces on the upper portion, for the heated air of fan 1, and the connection between hot air pipeline 3 and hot air distribution cover 7 is a hose, which can move up and down with lifting movement mechanism, heater 2 is a heat exchange device, which can be a waste heat exchanger, and the air can be heated by industrial waste heat, or the air can be heated by electric heating, one end of heater 2 is connected with fan 1, and the other end is connected with hot air pipeline 3, and hot air is sent into hot air distribution cover 7. Lifting movement mechanism 6 is reciprocated by the mechanical action of air cylinder or hydraulic cylinder, such as air cylinder, which is communicated with compressed air, and hydraulic cylinder is communicated with hydraulic pump. At the same time, it can move forward and backward through the pulley slide rail; material loosening device 5 is a rake type loosening device, which can loosen the surface layer of the material by scratching, and can also move forward and backward.

[0021] The utility model can be used in the solid-liquid separation system in the field such as chemical industry, sewage treatment, mineral separation, and can reduce energy consumption and operating cost.

[0022] The description of the utility model is illustrative rather than restrictive, and the skilled person understands that many modifications, changes or equivalents can be made within the spirit and scope defined by the claims, but they will all fall within the protection scope of the utility model patent.

Claims

1. A hot air-assisted filtration and dewatering device for a belt filter, characterized in that, It includes a blower, a heater, a filter cloth of a filter press, a material loosener, a lifting and moving mechanism, and a hot air distribution hood; the blower is connected to the heater through a pipeline, the heater is connected to the hot air distribution hood through a hot air pipeline, the hot air distribution hood is mounted on the lifting and moving mechanism, the lifting and moving mechanism is mounted on the filter cloth of the filter press, and a material loosener is mounted on the upper part of the filter cloth of the filter press.

2. The belt filter hot air assisted filtration and dewatering device according to claim 1, characterized in that, The heater is a waste heat exchanger or an electric heater.

3. The belt filter hot air assisted filtration and dewatering device according to claim 1, characterized in that, The top of the hot air distribution hood is provided with uniform hot air distribution holes, which are connected to the heater through hot air pipes.

4. The belt filter hot air assisted filtration and dewatering device according to claim 1, characterized in that, The hot air duct is a flexible hose.

5. The belt filter hot air assisted filtration and dewatering device according to claim 1, characterized in that, The lifting and moving mechanism includes a support frame and a cylinder mounted on the support frame, with the hot air distribution hood mounted on the cylinder piston rod.

6. The belt filter hot air assisted filtration and dewatering device according to claim 1, characterized in that, The lifting and moving mechanism includes a support frame and a hydraulic cylinder mounted on the support frame, with the hot air distribution hood mounted on the hydraulic rod.

7. The belt filter hot air assisted filtration and dewatering device according to claim 1, characterized in that, The material loosener is a rake-type loosener mounted on a support frame.

8. The belt filter hot air assisted filtration and dewatering device according to claim 1, characterized in that, The filter cloth of the filter press is provided with slide rails on both sides, and the bottom of the support of the lifting and moving mechanism is provided with pulleys, so that the lifting and moving mechanism can move forward and backward.

9. The belt filter hot air assisted filtration and dewatering device according to claim 7, characterized in that, The bottom of the support frame is equipped with pulleys, allowing the material scatterer to move forward and backward.

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