CN209226857U - A kind of energy-efficient natural gas perlite bloating plant - Google Patents

Abstract

The utility model relates to the field of natural gas perlite expansion equipment, in particular to a high-efficiency energy-saving natural gas perlite expansion equipment, including a drying mechanism, a recovery mechanism and a dust removal mechanism, a drying mechanism expansion equipment, a dryer, a hoist, and a cyclone separation The feed end of the dryer is connected with the discharge end of the elevator through a pipeline. The dryer is located on the top of the expansion device and is flush with the cyclone separator of the water tank. A The heat dissipation pipe is connected with the water tank and the cyclone separator respectively, and the water tank, the expansion device and the natural gas burner are connected in sequence. On the basis of the existing perlite expansion equipment, the connection relationship of each equipment is changed, so that the waste heat of the dryer and the expansion equipment can be reused, and burners such as flame nozzles are no longer needed for heating, which solves the exhaust pollution and excessive energy consumption.

Description

A high-efficiency energy-saving natural gas perlite expansion equipment

technical field

The utility model relates to the field of natural gas perlite expansion equipment, in particular to a high-efficiency energy-saving natural gas perlite expansion equipment.

Background technique

Expanded perlite is a kind of white granular material with a honeycomb structure inside, which is made of perlite ore after preheating and instantaneous high-temperature roasting and expansion. The principle is: perlite ore is crushed to form ore sand with a certain particle size, preheated and roasted, and heated rapidly (above 1000°C), the water in the ore sand is vaporized, and expands inside the softened glassy ore sand to form a porous structure and volume expansion 10-30 times that of non-metallic mineral products. Perlite can be divided into three forms according to its expansion technology and application: open cell, closed cell and balloon.

The traditional perlite expansion equipment is coal powder expansion equipment. During the production process of this equipment, the fuel produces a large amount of dust. The dust in the silo and expansion equipment cannot be collected, causing great pollution to the environment.

Chinese patent "A Natural Gas Expanded Perlite Expansion Equipment Capable of Efficient Dust Removal", authorized announcement number "CN204310964U" discloses a natural gas expanded perlite expansion equipment, although the waste heat of the expansion equipment is introduced into the dryer through the first pipeline during use However, it still needs the first burner to burn and add to the function of the dryer, which will generate certain pollution and cause certain energy consumption.

Utility model content

The utility model, on the basis of the existing perlite expansion equipment, changes the connection relationship of each equipment, so that the waste heat of the dryer and the expansion equipment can be reused, and burners such as burners are no longer needed for heating, which solves the problem of exhaustion. To solve the problems of gas pollution and excessive energy consumption, a high-efficiency and energy-saving natural gas perlite expansion equipment is provided.

The utility model solves the above-mentioned technical problems. The technical solution adopted is that a high-efficiency energy-saving natural gas perlite expansion device includes a drying mechanism, a recovery mechanism and a dust removal mechanism, a drying mechanism expansion device, a dryer, a hoist, and a cyclone separator. , natural gas burner and water tank, the feed end of the dryer is connected with the discharge end of the elevator through a pipeline, the dryer is located on the top of the expansion device, and is flush with the cyclone separator of the water tank, and a The heat dissipation pipe is connected with the water tank and the cyclone separator respectively, and the water tank, the expansion device and the natural gas burner are connected in sequence.

The purpose of this design is that by connecting the dryer directly to the expansion device, the heat generated by the natural gas burner at the bottom of the expansion device can be directly introduced into the dryer, compared with the existing method of introducing waste heat from the expansion device into the dryer through pipelines. The efficiency of the machine has been greatly improved, and it is no longer necessary to install burners such as flame nozzles in the dryer to meet the drying requirements. The heat generated by the natural gas burner at the bottom of the expansion device can be directly introduced into the dryer through the induced draft fan. The interior of the machine does not need to be heated by burners such as flame nozzles, which solves the problems of exhaust pollution and excessive energy consumption.

At the same time, due to the height difference between the dryer and the expansion equipment, the perlite entering from the hoist can be directly rolled into the expansion equipment after drying, which saves a hoist compared with the existing structure and greatly reduces production costs. On the basis of being close to the existing perlite expansion equipment, the connection relationship of each equipment is changed, so that the waste heat of the dryer and the expansion equipment can be reused, and burners such as burners are no longer needed for heating, which solves the problem of exhaust pollution and The problem of excessive energy consumption.

Further, the recovery mechanism includes a silo, a first blower fan, a second blower fan, a first conveying pipe and a second conveying pipe. The blower is connected, and the second feeding port of the silo is connected with the second blower through the second conveying pipe.

The purpose of this design is that the existing recovery mechanism mixes the solid particles produced by the cyclone separator and the expansion device through the fan, and then transports them to the silo together. After the improvement, the cyclone separator and the expansion device are separated by two fans The generated solid particles are conveyed separately, which improves the conveying efficiency and reduces the burden on the equipment.

Further, the dust removal mechanism includes a first bag filter and a first centrifugal fan, the feed end of the first bag filter communicates with the silo through a pipeline, and the discharge end of the first bag filter communicates with the first centrifugal fan .

Optionally, the dust removal mechanism also includes a multi-stage dust collector, a second bag filter and a second centrifugal fan. The feed end of the multi-stage dust collector is connected with the gas discharge end of the cyclone separator through a pipeline. The discharge end of the second bag filter communicates with the feed end of the second bag filter, and the discharge end of the second bag filter communicates with the second centrifugal induced draft fan.

Optionally, the dryer also includes a dryer drying section, a dryer inlet section, and a dryer outlet section. One end of the dryer inlet section is connected to a heat dissipation pipe, and the other end is connected to a water tank. The dryer One end of the air outlet section is connected with the cooling pipe, and the other end is connected with the cyclone separator.

Further, the recovery mechanism also includes a lower hopper of the water tank, the lower hopper of the water tank communicates with the first conveying pipe, and the solid discharge end of the cyclone separator communicates with the second conveying pipe.

Optionally, drag belts are provided at both ends of the drying section of the dryer, and the dryer rotates under the drive of the reducer.

The beneficial effects of the utility model include at least one of the following;

1. By connecting the dryer directly to the expansion device, the heat generated by the natural gas burner at the bottom of the expansion device can be directly introduced into the dryer, which is more efficient than the existing way of introducing the waste heat of the expansion device into the dryer through pipelines The range is improved, and it is no longer necessary to install burners such as flame nozzles in the dryer to meet the drying requirements.

2. Due to the height difference between the dryer and the expansion equipment, the perlite entering from the hoist can be directly rolled into the expansion equipment after drying. Compared with the existing structure, a hoist can be saved and the production cost can be greatly reduced. On the basis of being close to the existing perlite expansion equipment, the connection relationship of each equipment is changed, so that the waste heat of the dryer and the expansion equipment can be reused, and burners such as burners are no longer needed for heating, which solves the problem of exhaust pollution and The problem of excessive energy consumption.

3. The existing recovery mechanism mixes the solid particles produced by the cyclone separator and the expansion equipment through the fan, and then transports them to the silo together. After improvement, the solid particles produced by the cyclone separator and the expansion equipment are separated by two fans. Conveying separately improves the conveying efficiency and reduces the equipment burden.

4. As the designer of the utility model and the authorized announcement number "CN204310964U" patent, by comparing the utility model and the two structures of the prior art, the overall cost is reduced due to the use of one hoist and the installation of flame nozzles and other equipment About 20%, at the same time, no longer use the flame nozzle to burn the dryer for heating, and the consumption of natural gas is reduced by about 35%.

5. This utility model changes the traditional pulverized coal combustion, uses natural gas to burn, directly connects the natural gas pipeline, and the equipment installation is more convenient. The dust discharged from several dust discharge points of the equipment is collected by different dust collectors to reduce pollution. The effect of the expansion furnace continues to be used for the heat generated.

Description of drawings

Fig. 1 is a kind of high-efficiency energy-saving natural gas perlite expansion equipment structural schematic diagram;

Fig. 2 is a schematic diagram of the structure of the dryer;

The marks in the figure are: 1 is the expansion device, 2 is the dryer, 201 is the drying section of the dryer, 202 is the air inlet section of the dryer, 203 is the air outlet section of the dryer, 3 is the elevator, and 4 is the cyclone Separator, 5 is the silo, 6 is the natural gas burner, 7 is the lower hopper of the water tank, 8 is the water tank, 9 is the first fan, 10 is the second fan, 11 is the first delivery pipe, 12 is the second delivery pipe, 13 is the multi-stage dust collector, 14 is the first bag filter, 15 is the second bag filter, 16 is the first centrifugal fan, 17 is the second centrifugal fan, 18 is the cooling pipe, 19 is dragging, 20 is steel frame.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the protection content of the utility model.

Example 1

As shown in Figure 1, a high-efficiency energy-saving natural gas perlite expansion equipment includes a drying mechanism, a recovery mechanism and a dust removal mechanism. The drying mechanism includes an expansion equipment 1, a dryer 2, a hoist 3, a cyclone separator 4, and a natural Burner 6 and water tank 8, the feed end of dryer 2 communicates with the discharge end of hoist 3 through pipelines, dryer 2 is located on the top of expansion device 1, and is flush with water tank 8 and cyclone separator 4, and is dried A radiating pipe 18 is installed inside the machine 2, and the radiating pipe 18 is communicated with the water tank 8 and the cyclone separator 4 respectively, and the water tank 8, the expansion device 1 and the natural gas burner 6 are communicated in sequence.

In use, the dryer is directly connected to the expansion device, and the heat generated by the natural gas burner at the bottom of the expansion device can be directly introduced into the dryer, which is more efficient than the existing way of introducing the waste heat of the expansion device into the dryer through pipelines. The range is improved, and it is no longer necessary to install burners such as flame nozzles in the dryer to meet the drying requirements. Due to the height difference between the dryer and the expansion equipment, the perlite entering from the hoist can be directly rolled into the expansion equipment after drying, which saves a hoist compared with the existing structure, greatly reduces production costs, and is close to On the basis of the existing perlite expansion equipment, the connection relationship of each equipment is changed, so that the waste heat of the dryer and the expansion equipment can be reused, and burners such as burners are no longer needed for heating, which solves exhaust pollution and excessive energy consumption problem.

As the designer of the utility model and the authorized announcement number "CN204310964U", by comparing the two structures of the utility model and the prior art, the overall cost is reduced by about 20% due to the use of one hoist and the installation of fire nozzles and other equipment. %, and at the same time no longer use the flame nozzle to burn the dryer for heating, the consumption of natural gas is reduced by about 35%.

Example 2

Based on Embodiment 1, the recovery mechanism includes a silo 5, a first fan 9, a second fan 10, a first conveying pipe 11 and a second conveying pipe 12, the hopper 5 is arranged in the steel frame 20, and the hopper 5 first enters The feed port communicates with the first blower 9 through the first conveying pipe 11 , and the second feed port of the silo 5 communicates with the second blower 10 through the second conveying pipe 12 .

In use, the existing recovery mechanism mixes the solid particles produced by the cyclone separator and the expansion equipment through the fan, and then transports them to the silo together. Particles are conveyed separately, which improves the conveying efficiency and reduces the burden on equipment.

Example 3

Based on Embodiment 2, the dust removal mechanism includes a first bag filter 14 and a first centrifugal induced draft fan 16, the feed end of the first bag filter 14 communicates with the silo 5 through a pipeline, and the discharge end of the first bag filter 14 It communicates with the first centrifugal induced draft fan 16 .

Example 4

Based on Embodiment 3, the dust removal mechanism also includes a multistage dust collector 13, a second bag filter 15 and a second centrifugal induced draft fan 17, and the feed end of the multistage dust collector 13 is connected to the gas discharge end of the cyclone separator 4 through a pipeline. The discharge end of the multi-stage dust collector 13 communicates with the feed end of the second bag filter 15 , and the discharge end of the second bag filter 15 communicates with the second centrifugal fan 17 .

In use, the bag filter is a high-efficiency pulse bag filter, and the high-efficiency pulse bag filter is a new type of high-efficiency pulse bag filter improved on the basis of the bag filter. In order to further improve the pulse bag filter, the improved pulse bag filter retains the advantages of high purification efficiency, large gas handling capacity, stable performance, convenient operation, long filter bag life, and small maintenance workload. The upper and pulse valves have been reformed to solve the problems of open-air placement and low pressure of compressed air sources. The main function of the cyclone separator is to collect dust with larger particles, and the bag filter is mainly to collect very fine dust.

Example 5

Based on Embodiment 4, as shown in Figure 2, the dryer 2 also includes a dryer drying section 201, a dryer inlet section 202 and a dryer outlet section 203, and one end of the dryer inlet section 202 is connected to the heat dissipation The pipe 18 is connected, and the other end is connected with the water tank 8 . One end of the air outlet section 203 of the dryer is connected with the heat dissipation pipe 18 , and the other end is connected with the cyclone separator 4 .

Example 6

Based on Embodiment 5, the recovery mechanism further includes a water tank lower hopper 7 , one end of the water tank lower hopper 7 communicates with the first conveying pipe 11 , and the solid discharge end of the cyclone separator 4 communicates with the second conveying pipe 12 .

Example 7

Based on Embodiment 6, drag belts 19 are provided at both ends of the drying section 201 of the dryer, and the dryer 2 rotates driven by the reducer.

Claims (7)

1. A high-efficiency and energy-saving natural gas perlite expansion device, including a drying mechanism, a recovery mechanism and a dust removal mechanism. The drying mechanism includes an expansion device (1), a dryer (2), a hoist (3), a cyclone device (4), natural gas burner (6) and water tank (8), characterized in that: the feed end of the dryer (2) communicates with the discharge end of the hoist (3) through a pipeline, and the dryer (2) Located on the top of the expansion device (1), flush with the water tank (8) and the cyclone separator (4), a heat dissipation pipe (18) is installed inside the dryer (2), and the heat dissipation pipe (18) is connected to the The water tank (8) communicates with the cyclone separator (4), and the water tank (8), the expansion device (1) and the natural gas burner (6) communicate sequentially. 2. A high-efficiency energy-saving natural gas perlite expansion device according to claim 1, characterized in that: the recovery mechanism includes a silo (5), a first fan (9), a second fan (10), a first Conveying pipe (11) and second conveying pipe (12), the silo (5) is set in the steel frame (20), the first feed port of the silo (5) passes through the first conveying pipe (11) and the second A blower fan (9) is connected, and the second feed port of the hopper (5) is connected with the second blower fan (10) through the second conveying pipe (12). 3. A high-efficiency energy-saving natural gas perlite expansion device according to claim 2, characterized in that: the dust removal mechanism includes a first bag filter (14) and a first centrifugal induced draft fan (16), and the first The feed end of the bag filter (14) communicates with the silo (5) through a pipe, and the discharge end of the first bag filter (14) communicates with the first centrifugal induced draft fan (16). 4. A high-efficiency energy-saving natural gas perlite expansion device according to claim 3, characterized in that: the dust removal mechanism also includes a multi-stage dust collector (13), a second bag filter (15) and a second centrifugal suction The fan (17), the feed end of the multi-stage dust collector (13) communicates with the gas discharge end of the cyclone separator (4) through a pipeline, and the discharge end of the multi-stage dust collector (13) is connected to the second bag dust removal The feed end of the filter (15) is connected, and the discharge end of the second bag filter (15) is connected with the second centrifugal induced draft fan (17). 5. A high-efficiency energy-saving natural gas perlite expansion device according to claim 4, characterized in that: the dryer (2) also includes a dryer drying section (201), a dryer inlet section ( 202) and the air outlet section (203) of the dryer, one end of the air inlet section (202) of the dryer is connected to the heat dissipation pipe (18), and the other end is connected to the water tank (8), and the air outlet section of the dryer (203 ) one end is connected with the heat dissipation pipe (18), and the other end is connected with the cyclone separator (4). 6. A high-efficiency energy-saving natural gas perlite expansion device according to claim 5, characterized in that: the recovery mechanism also includes a water tank lower hopper (7), and the water tank lower hopper (7) is connected to the first delivery pipe ( 11) is connected, the solid discharge end of the cyclone separator (4) is connected with the second conveying pipe (12). 7. A high-efficiency energy-saving natural gas perlite expansion device according to claim 5, characterized in that: the two ends of the drying section (201) of the dryer are provided with drag strips (19), and the dryer (2) is Driven by the reducer to rotate.