A carbon-zero emission drying room used in compound fertilizer production plants

Abstract

A zero-carbon emission drying room for use in a compound fertilizer production plant comprises circumferential sidewalls and a roof. The drying room is provided with horizontal partitions comprising a hard perforated plate layer, two fine filter gauze layers, and two coarse filter gauze layers. A drawer is provided on the lower level of the drying room, and a horizontal ventilation duct is provided on the upper level of the drying room. A fan is provided on the horizontal ventilation duct outside the drying room, and two-stage air filters are provided within the horizontal ventilation duct between the fan and the drying room. The horizontal ventilation duct has a downward extension, the lower end of which passes through the horizontal partition and has a bell mouth, which is opposite the drawer. A countertop is provided on the circumferential inner wall of the upper level, and a workbench is provided on the countertop. Each workbench is equipped with a drying box. A door is provided on one side wall of the drying room, and an exhaust duct is provided on the roof. A flap sealing the exhaust duct is connected to the upper side of the exhaust duct via a torsion spring. This drying room utilizes waste heat from the air compressor as a heat source, which is energy-efficient and environmentally friendly.

Description

Technical Field

[0001] The invention relates to a carbon-zero emission drying room used in a compound fertilizer production plant. Background Art

[0002] The bag dust removal equipment in the compound fertilizer production workshop and the packaging equipment in the compound fertilizer packaging workshop both require compressed air. Therefore, most compound fertilizer manufacturers will purchase air compressors. During normal operation, the air compressor will generate a lot of heat, and the temperature in the air compressor room will rise. The high indoor temperature enters the air compressor and is compressed to do work, causing the compressed air temperature at the air compressor outlet to be too high. The excessively high temperature will trigger the air compressor outlet sensor to alarm, and even activate the air compressor power-off self-protection program, which will seriously affect normal production efficiency.

[0003] Compound fertilizer production plants contain numerous pieces of equipment, and electric welders are often required for routine maintenance. These welders need to be cleaned promptly after use to remove fertilizer dust from both the interior and exterior of the welder. Otherwise, electrochemical corrosion will occur over time, damaging the welder. Cleaned welders are typically left out in the open air to dry before being stored. However, due to the nature of compound fertilizer production plants, the air surrounding the factory floor is inevitably contaminated with salts, such as fertilizer dust. These salts can adhere to the welders before they are dried, leading to corrosion. The current solution is to dry the welders in a dedicated, enclosed room using hot air drying equipment. In addition, compound fertilizer production plants are generally equipped with laboratories for product inspection and research and development. Soil samples often need to be dried and tested in the laboratory. Since soil samples are easily blown away by the wind after drying, traditional hot air drying cannot be used. Or, general laboratories use natural air drying for soil samples. However, no special filtering procedures are used in compound fertilizer factories. Natural wind will inevitably blow soil samples into the surface of the soil samples, which has a huge impact on the nutrient indicators of the soil samples. Therefore, special closed heat radiation drying equipment is generally required in the air drying room. The purchase and use of these two types of drying equipment increase the production costs of compound fertilizer manufacturers. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a carbon-zero emission drying room for use in a compound fertilizer production plant. The drying room utilizes the waste heat of the air compressor as a heat source, which is energy-saving and environmentally friendly. It can not only significantly reduce the temperature in the air compressor room, but also provide clean hot air to dry electric welders and soil samples.

[0005] In order to solve the above technical problems, the present invention provides a carbon-zero emission drying room for use in a compound fertilizer production plant, comprising circumferential side walls and a roof, the upper side of the roof adopts photovoltaic power generation materials and has built-in batteries and electronic control components, a horizontal partition is provided in the drying room to separate the drying room into an upper layer and a lower layer, the horizontal partition comprises a hard perforated plate layer, two fine filter gauze layers, and two coarse filter gauze layers arranged in sequence from top to bottom, a drawer is provided at a position corresponding to the lower layer on one of the side walls of the drying room, the upper side of the drawer is open, a horizontal ventilation duct with a rectangular cross-section connecting the inside and outside of the upper layer is provided at a position corresponding to the upper layer on one of the side walls of the drying room, a fan is provided at the outside of the drying room, the fan is electrically connected to the battery in the roof, a two-stage air filter is provided at a position corresponding to the fan and the drying room in the horizontal ventilation duct, and a water The flat ventilation duct is located in the drying room and is provided with a vertical downward extension. The lower end of the extension passes through the horizontal partition and is provided with a trumpet mouth which is smaller at the top and larger at the bottom. The trumpet mouth is opposite to the upper opening of the drawer. A horizontally arranged long strip table is provided on the circumferential inner wall of the upper layer. A number of vertical partitions are arranged at intervals on the long strip table. The vertical partitions divide the long strip table into a number of rectangular workbenches. A drying box is provided on each workbench. The drying box includes a rectangular box body with an open upper side, an upper cover is hinged on the upper side of the box body, and a color-changing silica gel layer is provided on the bottom of the box body. The upper cover is provided with a number of ventilation holes passing through the upper cover. A door is provided on one of the side walls of the upper layer of the drying room, and a staircase is provided on the outside of the drying room corresponding to the door. An exhaust pipe connecting the inside and outside of the drying room is provided on the roof, and a flap that seals the exhaust pipe is connected to the upper side of the exhaust pipe by a torsion spring.

[0006] For the purpose of simple explanation, the zero-carbon emission drying room for use in a compound fertilizer production plant described in the present invention is referred to as the drying room below.

[0007] The principle and usage of this drying room: connect the air duct of the existing air compressor with the horizontal ventilation duct of this drying room. Since there is inevitably fertilizer raw material dust in the compound fertilizer production workshop, which mainly contains salt components, setting up two layers of air filters can fully filter the raw material dust. Then put the welding machine or other equipment to be dried into the drawer, and then put the soil sample to be dried into the drying box. The hot air generated by the air compressor will pass through the horizontal ventilation duct and the fan and blow directly to the drawer, thereby drying the equipment in the drawer. Then the hot air in the lower layer will pass upward through the horizontal partition and reach the upper layer. The air temperature of the upper layer will rise, and the outside of the drying box is surrounded by hot air. The heat radiates inward through the drying box body. The moisture in the soil sample to be dried is gradually evaporated under the action of heat radiation, and the evaporated moisture The air is discharged from the vents on the upper cover, thereby drying the soil sample. Since the horizontal partitions have a coarse filter gauze layer and a fine filter gauze layer, they can reduce the wind pressure, and the soil samples are stored in the drying box. The drying process will not blow the soil samples away. The color-changing silica gel can absorb moisture to speed up the drying effect of the soil samples. When the soil samples are taken out, the heat in the room will also dry the color-changing silica gel without affecting the next use. Since the hot air generated by the air compressor continuously enters the drying room, a positive pressure will be formed in the drying room, which increases the drying effect. When the positive pressure reaches a certain value, the flap on the exhaust pipe will be pushed open to exhaust. On the one hand, it can maintain a certain positive pressure in the drying room to ensure the overall drying effect. On the other hand, the exhaust process can discharge air with water vapor to ensure that the indoor air is dry, which is more conducive to the drying operation.

[0008] Advantages of this drying room: This drying room uses local materials and utilizes the waste heat of the air compressor as a heat source. The drying room is based on the theme of green environmental protection. It not only greatly reduces the temperature in the air compressor room, but also provides clean hot air to dry the welding machines and soil samples that often need to be dried in the factory area of compound fertilizer production and processing enterprises. It has zero energy consumption and zero carbon emissions.

[0009] In order to achieve better use effect of this drying room, the preferred solution is as follows:

[0010] Preferably, the air filter includes a vertically arranged rectangular filter plate, a sealing plate is provided on the upper side of the filter plate, a notch matching the filter plate is provided at a position corresponding to each filter plate on the upper side of the horizontal ventilation duct, a vertically arranged slide groove is provided at a position corresponding to each notch in the horizontal ventilation duct, the filter plate is inserted into the slide groove, and the sealing plate is connected to the horizontal ventilation duct by bolts.

[0011] When the air filter needs to be replaced, simply remove the bolts on the sealing plate, then pull out the filter plate to replace the air filter. The operation is simple and convenient.

[0012] Preferably, a handle is provided on the front side of the upper cover, and a label slot made of a transparent material is provided on the upper side of the upper cover near the handle.

[0013] A handle is provided on the top cover of the drying box for easy opening of the drying box, and a label slot can be inserted with a label for easy marking of soil samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the drying room.

[0015] Figure 2 This is another three-dimensional view of the drying room (the roof is not shown).

[0016] Figure 3 This is a cross-sectional view of the drying room.

[0017] Figure 4 yes Figure 3 A partial enlarged view of part A in the middle.

[0018] Figure 5 It is a three-dimensional diagram of the drying box. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 5, a carbon zero-emission drying room for compound fertilizer production plant, comprising circumferential side walls 1 and a roof 2, the upper side of the roof 2 is made of photovoltaic power generation material and has built-in batteries and electronic control components (the batteries and electronic control components are conventional technologies for photovoltaic power generation and are not described in detail in this embodiment), a horizontal partition 3 is provided in the drying room to separate the drying room into an upper layer and a lower layer, the horizontal partition 3 comprises a hard perforated plate layer 31, two fine filter gauze layers 32, and two coarse filter gauze layers 33 arranged in sequence from top to bottom, a drawer 11 is provided at a position corresponding to the lower layer on one of the side walls 1 of the drying room, the upper side of the drawer 11 is open, a horizontal ventilation duct 4 with a rectangular cross-section and connecting the inside and outside of the upper layer is provided at a position corresponding to the upper layer on one of the side walls 1 of the drying room, the horizontal ventilation duct 4 is provided with a fan 41 at the outside of the drying room, the fan 41 is electrically connected to the battery in the roof 2 (for simple explanation, the electrical connection line is omitted in the accompanying drawings), a fan is provided at a position corresponding to the fan 41 and the drying room in the horizontal ventilation duct 4 There are two-stage air filters. The horizontal ventilation pipe 4 is located in the drying room and is provided with a vertical downward extension 43. The lower end of the extension 43 passes through the horizontal partition 3 and is provided with a trumpet 44 with a small upper part and a large lower part. The trumpet 44 is opposite to the upper opening of the drawer 11. A horizontally arranged long strip table 5 is provided on the circumferential inner wall of the upper layer. A plurality of vertical partitions 51 are arranged at intervals on the long strip table 5. The vertical partitions 51 divide the long strip table 5 into a plurality of rectangular workbenches 6. Each workbench 6 is provided with a drying The drying box 7 comprises a rectangular box body 71 with an open upper side, an upper cover 72 hinged on the upper side of the box body 71, a color-changing silicone layer 73 provided on the bottom of the box body, and a plurality of ventilation holes 721 passing through the upper cover 72 provided on the upper cover 72. A door 8 is provided on one of the side walls 1 on the upper level of the drying room, and a staircase 9 is provided on the outside of the drying room corresponding to the door 8. An exhaust pipe 21 connecting the inside and outside of the drying room is provided on the roof 2, and a flap 22 sealing the exhaust pipe 21 is connected to the upper side of the exhaust pipe 21 through a torsion spring.

[0020] The air filter includes a vertically arranged rectangular filter plate 421, a sealing plate 422 is provided on the upper side of the filter plate 421, a notch 42 matching the filter plate 421 is provided at a position corresponding to each filter plate 421 on the upper side of the horizontal ventilation duct 4, and a vertically arranged slide 423 is provided at a position corresponding to each notch 42 in the horizontal ventilation duct 4. The filter plate 421 is inserted into the slide 423, and the sealing plate 422 is connected to the horizontal ventilation duct 4 by bolts.

[0021] A handle 722 is provided on the front side of the upper cover 72 , and a label slot 723 made of a transparent material is provided on the upper side of the upper cover 72 near the handle 722 .

[0022] The principle and use of this drying room: connect the air duct of the existing air compressor with the horizontal ventilation duct 4 of this drying room. Since there is inevitably fertilizer raw material dust in the compound fertilizer production workshop, which mainly contains salt components, two layers of air filters are set up to fully filter the raw material dust. Then put the electric welding machine or other equipment to be dried into the drawer 11, and then put the soil sample to be dried into the drying box 7. The hot air generated by the air compressor will pass through the horizontal ventilation duct 4 and the fan 41 and blow directly to the drawer 11, thereby drying the equipment in the drawer 11. Then the hot air in the lower layer will pass upward through the horizontal partition 3 and reach the upper layer. The air temperature of the upper layer will rise, and the drying box 7 is surrounded by hot air. The heat radiates inward through the box body 71 of the drying box 7. The moisture in the soil sample to be dried is gradually evaporated under the action of heat radiation, and the evaporated moisture The air is discharged from the vent 721 on the upper cover 72, thereby drying the soil sample. Since the horizontal partition 3 has a coarse filter gauze layer 33 and a fine filter gauze layer 32, they can reduce the wind pressure, and the soil sample is stored in the drying box 7. The drying process will not blow the soil sample away. The color-changing silica gel can absorb moisture to speed up the drying effect of the soil sample. When the soil sample is taken out, the heat in the room will also dry the color-changing silica gel without affecting the next use. Since the hot air generated by the air compressor continuously enters the drying room, a positive pressure will be formed in the drying room, which increases the drying effect. When the positive pressure reaches a certain value, the flap 22 on the exhaust pipe 21 will be pushed open for exhaust. On the one hand, a certain positive pressure can be maintained in the drying room to ensure the overall drying effect. On the other hand, the exhaust process can discharge air with water vapor to ensure that the indoor air is dry, which is more conducive to the drying operation.

[0023] Advantages of this drying room: This drying room uses local materials and utilizes the waste heat of the air compressor as a heat source. The drying room is based on the theme of green environmental protection. It not only greatly reduces the temperature in the air compressor room, but also provides clean hot air to dry the welding machines and soil samples that often need to be dried in the factory area of compound fertilizer production and processing enterprises. It has zero energy consumption and zero carbon emissions.

[0024] When the air filter needs to be replaced, the bolts on the sealing plate 422 are directly removed, and then the filter plate 421 is pulled out to replace the air filter. The operation is simple and convenient.

[0025] The upper cover 72 of the drying box 7 is provided with a handle 722 for conveniently opening the drying box 7, and the label slot 723 can be inserted with a label for marking the soil sample.

Claims

1. A zero-carbon emission drying room for use in a compound fertilizer production plant, characterized by: The drying room comprises a circumferential side wall and a roof. The upper side of the roof is made of photovoltaic power generation materials and has built-in batteries and electronic control components. A horizontal partition is provided in the drying room to separate the drying room into an upper layer and a lower layer. The horizontal partition comprises a hard perforated plate layer, two fine filter gauze layers, and two coarse filter gauze layers that are arranged in sequence from top to bottom. A drawer is provided at a position corresponding to the lower layer on one of the side walls of the drying room. The upper side of the drawer is open, and the electric welding machine to be dried is placed in the drawer. A horizontal ventilation duct with a rectangular cross-section that connects the inside and outside of the upper layer is provided at a position corresponding to the upper layer on one of the side walls of the drying room. A fan is provided at the outside of the drying room. The fan is electrically connected to the battery in the roof. The air duct of the air compressor is connected to the horizontal ventilation duct of the drying room. A two-stage air filter is provided at a position corresponding to the fan and the drying room in the horizontal ventilation duct. The horizontal ventilation duct is located at the drying room. A vertical downward extension is provided in the drying room, the lower end of the extension passes through a horizontal partition and is provided with a trumpet mouth that is smaller at the top and larger at the bottom, the trumpet mouth is opposite to the upper opening of the drawer, a horizontally arranged long strip table is provided on the circumferential inner wall of the upper layer, a plurality of vertical partitions arranged at intervals are provided on the long strip table, the vertical partitions divide the long strip table into a plurality of rectangular workbenches, each workbench is provided with a drying box, the drying box comprises a rectangular box body with an open upper side, an upper cover is hinged on the upper side of the box body, a color-changing silica gel layer is provided on the bottom of the box body, a plurality of vents penetrating the upper cover are provided on the upper cover, the soil sample to be dried is placed in the drying box, a door is provided on one of the side walls of the upper layer of the drying room, a staircase is provided on the outside of the drying room corresponding to the door, an exhaust pipe connecting the inside and outside of the drying room is provided on the roof, and a flap that seals the exhaust pipe is connected to the upper side of the exhaust pipe by a torsion spring; The air filter includes a vertically arranged rectangular filter plate, a sealing plate is provided on the upper side of the filter plate, a notch matching the filter plate is provided at a position corresponding to each filter plate on the upper side of the horizontal ventilation duct, and a vertically arranged slide groove is provided at a position corresponding to each notch in the horizontal ventilation duct. The filter plate is inserted into the slide groove, and the sealing plate is connected to the horizontal ventilation duct by bolts.

2. The zero-carbon emission drying room for compound fertilizer production plant according to claim 1, characterized in that: A handle is provided on the front side of the upper cover, and a label slot made of a transparent material is provided on the upper side of the upper cover near the handle.

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