Energy-saving device for reducing moisture content of sludge

Abstract

The utility model discloses an energy-saving sludge water content reducing device which comprises a sludge bin, a hydraulic bin cover and a deodorization pipeline are arranged at the top of the sludge bin, a feed opening is formed in the bottom of the sludge bin, a hydraulic sliding frame is arranged above the feed opening, a screw conveyor is arranged below the feed opening and connected with a sludge plunger pump, and the sludge plunger pump is connected with the hydraulic sliding frame. The sludge plunger pump is connected to a feeding box through a pipeline, the feeding box is connected with a dry powder conveying pipeline and a double-shaft mixer, the double-shaft mixer is connected with a wall-breaking extruder, and the wall-breaking extruder is connected with a sunshine room storage yard. According to the high-temperature carbonization treatment device, sludge with the moisture content of about 80% can be quickly treated into brick making raw materials with the moisture content of about 15%, the sludge treatment efficiency is greatly improved, and compared with traditional high-temperature carbonization treatment equipment, the high-temperature carbonization treatment device is more energy-saving and environment-friendly.

Description

Technical field:

[0001] The utility model relates to the technical field of sludge treatment, in particular to an energy-saving sludge moisture content reducing device. Background technology:

[0002] The main characteristics of sludge are high water content, high organic matter content, and easy decomposition and odor. The current sludge treatment methods mainly include landfill, composting, natural drying, drying and carbonization. These treatment methods have disadvantages such as low disposal efficiency and high energy consumption. A large amount of sludge has not been treated in a timely, efficient and standardized manner, which can easily cause waste of resources and "secondary pollution", thus posing a threat to the ecological environment. Utility model content:

[0003] The utility model provides an energy-saving sludge moisture content reducing device, which solves the above-mentioned problems of low disposal efficiency and high energy consumption.

[0004] The technical solutions of the utility model are as follows: an energy-saving sludge moisture content reducing device, comprising a sludge bin, a hydraulic bin cover and a deodorization pipe being arranged on the top of the sludge bin, a discharge port being arranged at the bottom of the sludge bin, a hydraulic slide being arranged above the discharge port, a screw conveyor being arranged below the discharge port, the screw conveyor having a sludge plunger pump or a screw pump, the sludge plunger pump or the screw pump being connected to a feed box through a pipeline, the feed box being connected to a dry powder conveying system, the feed box being connected to a double-shaft mixer, the double-shaft mixer being connected to a wall-breaking extruder, and the wall-breaking extruder being connected to a sun room yard.

[0005] The sludge bin is used to collect sludge with a moisture content of 80% after filtration. The sludge is transported to the negative pressure sludge bin by a special vehicle and then transported to the feed box for mixing with dry powder through the sludge pump system installed at the bottom of the sludge bin.

[0006] The wall-breaking extruder uses external force to break the cell walls of cells in the sludge through high-pressure extrusion, thereby releasing the organic and inorganic substances and other components in the sludge that have been sterilized and deodorized, and the water molecules and dry powder are quickly adsorbed and volatilized, thereby achieving the effect of breaking the wall. The wall-breaking extruder uses a speed with a certain extrusion and pressure ratio to drive the central screw extrusion shaft to cut and crush the sludge under ultra-pressure in the cavity of the wall-breaking extruder, and squeeze the cell membranes of the cells in the sludge to achieve the purpose of breaking the wall. The mixed material after wall-breaking extrusion is sent to the storage yard through the conveying system. After the surface of the mixed material in the storage yard comes into contact with the air, the water evaporates quickly and naturally, and then it is transported to the next process in batches according to the stacking order;

[0007] Preferably, a feed port is provided on the top of the sludge bin, and the hydraulic bin cover comprises a bin cover hinged at the feed port, and a driving hydraulic cylinder hinged to the feed port and the bin cover respectively.

[0008] Preferably, the screw conveyor, sludge plunger pump or screw pump, feed box, double-shaft mixer, and wall-breaking extruder are all connected by a conveyor line, and the wall-breaking extruder and the sun room yard are connected by a conveyor belt. The mixed material after wall-breaking extrusion is sent to the sun room yard via a conveyor belt, and the moisture on the surface of the piled mixed material evaporates quickly and naturally after contacting with the air, and then it is transported to the next process in batches according to the stacking order;

[0009] Preferably, the dry powder conveying system includes a dry powder silo, and a shale and coal slag yard connected to the dry powder silo. The dry powder silo is used to collect dry powder raw materials, and the general dry shale and abandoned construction solid waste are crushed into general powders such as fly ash, stone powder, and shale powder by a ball mill, and then conveyed to the feed box, and then conveyed to the mixing mixer according to the required mixing amount ratio by the metering roller conveyor at the bottom of the feed box, and mixed with the sludge;

[0010] The double-shaft mixer mixes, stirs and homogenizes the sludge with a moisture content of about 80% transported from the sludge bin and the dry powder with a moisture content of about 20% transported from the dry powder bin, changing the plasticization of the mixed raw materials before entering the next process;

[0011] Preferably, the sunroom yard is connected to the mixing and proportioning bin, the aging bin and the processing workshop in sequence through a conveyor belt, and the moisture content of the mixture transported from the sunroom yard is proportioned with the comprehensive addition amount of the main materials for brick making, such as shale, coal slag, and other raw materials. After mixing and proportioning, the mixture is transported to the raw material aging bin and finally to the brick making process.

[0012] Preferably, the deodorizing pipe is connected to a deodorizing and sterilizing spraying device. Generally, solid waste sludge is a mixture of organic matter, inorganic matter, a large number of microorganisms and other substances. The sludge produces harmful gases and bacteria, fungi, and viruses among the microorganisms through anaerobic fermentation, and carries a large number of pathogenic microorganisms, parasite eggs and intestinal infectious viruses. After transportation, transportation, and stacking, it will produce odors such as hydrogen sulfide when in contact with the air. After analyzing the components of sludge from various sources, a special bactericidal agent can be used, and an automatic metering pump can be installed at the inlet and outlet of the sludge bin to perform deodorizing and sterilizing treatment.

[0013] The beneficial effects of the utility model are as follows: sludge is stored in the sludge bin, and the closed sludge bin 1 is fed through a hydraulic bin cover to prevent the sludge from decaying and polluting the environment with a foul smell, and is sprayed, disinfected and deodorized through a deodorizing pipe and a deodorizing and sterilizing spraying device, and the sludge is transported to the feed box through a feed port at the bottom of the sludge bin, a screw conveyor and a sludge plunger pump (screw pump), and a hydraulic slide is also provided at the bottom of the sludge bin to prevent accumulation and blockage, and dry powder with a moisture content of 5% to 20% is added to the sludge with a moisture content of about 80%, and the sludge and the dry powder are stirred and mixed in a ratio of about 1:1.5 through a feed box and a double-shaft mixer, and the moisture content is reduced to about 35%, and the mixture is extruded by a wall-breaking extruder and then transported to a sunlight The sludge is left to stand still in the yard, and the water content of the cells in the sludge after wall breaking is quickly adsorbed and volatilized by the powder in the mixture, and the water content will naturally drop to 15%-20%, meeting the water content requirement of sludge post-treatment. The device reduces the water content of the sludge and dry powder mixture after wall breaking and extrusion, and mixes it with shale brick-making raw materials to make bricks, finally achieving the effect of low energy consumption and quantitative treatment of sludge. The processing capacity is five times that of traditional equipment, and the operating cost is 10% of that of traditional equipment. It changes the traditional process of sludge being treated after dehydration, filtration, drying and carbonization, and there is no need to treat the sewage generated during the sludge filtration process by the filter press, which greatly saves the investment cost and operating cost of the equipment, and is more energy-saving and environmentally friendly. Description of the drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a process flow chart of the utility model. Specific implementation method:

[0016] Combined with Figure 1 , 2 The utility model is an energy-saving sludge moisture content reducing device, which is further described.

[0017] The utility model discloses an energy-saving sludge moisture content reducing device, comprising a sludge bin 1, a hydraulic bin cover 2 and a deodorizing pipe 3 are arranged on the top of the sludge bin 1, a feeding port is arranged at the bottom of the sludge bin 1, a hydraulic slide 4 is arranged above the feeding port, a screw conveyor 5 is arranged below the feeding port, the screw conveyor 5 is connected to a sludge plunger pump or a screw pump 6, the sludge plunger pump or the screw pump 6 is connected to a feed box 7 through a pipeline, the feed box 7 is connected to a dry powder conveying system, the feed box 7 is connected to a double-shaft mixer 8, the double-shaft mixer 8 is connected to a wall-breaking extruder 9, and the wall-breaking extruder 9 is connected to a sun room yard.

[0018] Furthermore, a feed port is provided at the top of the sludge bin 1, and the hydraulic bin cover 2 includes a bin cover 2-1 hinged at the feed port, and a driving hydraulic cylinder 2-2 hinged to the feed port and the bin cover 2-1 respectively.

[0019] Furthermore, the screw conveyor 5, the sludge plunger pump or screw pump 6, the feed box 7, the double-shaft mixer 8, and the wall-breaking extruder 9 are all connected by a conveyor line, and the wall-breaking extruder 9 and the sun room yard are connected by a conveyor belt.

[0020] Furthermore, the dry powder conveying system includes a dry powder silo, and a shale and coal slag storage yard connected to the dry powder silo.

[0021] Furthermore, the sun room yard is connected to the mixing and proportioning warehouse, aging warehouse and processing workshop in sequence through a conveyor belt.

[0022] Furthermore, the deodorizing pipe 3 is connected to a deodorizing and sterilizing spraying device.

[0023] The working principle of the utility model is as follows: the sludge with a moisture content of about 80% is stored in the sludge bin 1, the closed sludge bin 1 is fed through the hydraulic bin cover 2 to prevent the sludge from rotting and polluting the environment, and the sludge is sprayed, disinfected and deodorized through the deodorization pipeline 3 and the deodorization and sterilization spraying device, and the sludge is transported to the feed box 7 through the feed port at the bottom of the sludge bin 1, the screw conveyor 5 and the sludge plunger pump or screw pump 6. The bottom of the sludge bin 1 is also provided with a hydraulic slide 4 to prevent accumulation and blockage, and the sludge is mixed with The dry powder with a moisture content of 5% to 20% is mixed by the feed box 7 and the double-shaft mixer 8 at a ratio of about 1:1.5, and the moisture content is reduced to about 35%. The mixture is extruded by the wall-breaking extruder 9 and transported to the sun room yard for standing. The water content of the cells in the sludge processed by the wall-breaking process is quickly adsorbed and volatilized by the powder in the mixture, and the mixture with a moisture content of naturally 15% to 20% can be used as a raw material for brick making after aging and adding other mixing ratios.

[0024] The above description is only the preferred embodiment of the present utility model. All other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present utility model.

Claims

1. An energy-saving sludge moisture reduction device, comprising a sludge bin, characterized in that: A hydraulic bin cover and a deodorization pipe are provided on the top of the sludge bin, a discharge port is provided at the bottom of the sludge bin, a hydraulic slide is provided above the discharge port, a screw conveyor is provided below the discharge port, the screw conveyor is connected to a sludge plunger pump or a screw pump, the sludge plunger pump or the screw pump is connected to a feed box through a conveying line, the feed box is connected to a dry powder conveying system, the feed box is connected to a double-shaft mixer, the double-shaft mixer is connected to a wall-breaking extruder, and the wall-breaking extruder is connected to a sun room yard.

2. The energy-saving sludge moisture reduction device according to claim 1 is characterized in that: A feed port is provided on the top of the sludge bin, and the hydraulic bin cover comprises a bin cover hinged at the feed port, and a driving hydraulic cylinder hinged to the feed port and the bin cover respectively.

3. The energy-saving sludge moisture reduction device according to claim 1 is characterized in that: The screw conveyor, the sludge plunger pump or the screw pump, the feed box, the double-shaft mixer and the wall-breaking extruder are all connected through a conveying line, and the wall-breaking extruder and the sun room yard are connected through a conveyor belt.

4. The energy-saving sludge moisture reduction device according to claim 1 is characterized in that: The dry powder conveying system includes a dry powder silo and a shale and coal slag storage yard connected to the dry powder silo.

5. The energy-saving sludge moisture reduction device according to claim 1 is characterized in that: The sun room yard is sequentially connected to the mixing and proportioning warehouse, the aging warehouse and the processing workshop through a conveyor belt.

6. The energy-saving sludge moisture reduction device according to claim 1 is characterized in that: The deodorizing pipeline is connected to the deodorizing and sterilizing spraying device.

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