CN212396664U

CN212396664U - Sticky soft surface drying granulation equipment

Info

Publication number: CN212396664U
Application number: CN202020825295.7U
Authority: CN
Inventors: 卢国满; 曲思明; 唐华; 汤婷婷
Original assignee: Yuheng Nanjing Environmental Protection Equipment Technology Co ltd
Current assignee: Yuheng Nanjing Environmental Protection Equipment Technology Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-01-26
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses a surface drying granulation device for viscous soft bodies, wherein organic viscous soft bodies are extruded into a strip string by an elastic string extruding machine after passing through, and in the falling process, the strip string is cut by adopting compressed gas flat nozzle pulse jet flow to form irregular particles with certain particle size, and meanwhile, powder sprayed by a dry powder two-fluid nozzle fixed on the side wall of a surface drying forming tank is firstly solidified and wrapped to form an isolation clothes body between the soft bodies; then the soft particles fall on the high-temperature surface of the disc with the bottom fully distributed with the dry powder, and are solidified, wrapped, heated, surface-dried and solidified under the driving of the rotation of the material copying plate, so that hard shells and dispersed soft particles are formed; finally, the formed soft particles and the residual dry powder are subjected to vibration screening separation together, so that the dry powder is reused in the two-fluid nozzle for continuous use. Safe and sanitary, energy-saving and environment-friendly, is convenient to popularize and use, and is beneficial to the storage, transportation and utilization of organic viscous soft bodies.

Description

Sticky soft surface drying granulation equipment

Technical Field

The utility model relates to an environmental protection equipment, especially a viscidity software surface is granulation equipment futilely.

Background

With the rapid development of national economy, a large amount of organic viscous soft bodies are generated in the industries of environmental protection, chemical industry, food, medicines and the like, for example, in the oil field development in the past decades, the soil pollution problem left over historically is up to 14300 million tons due to insufficient environmental protection attention and supervision punishment force and insufficient waste rectification capacity; at the same time, this figure is increasing with a figure of 400 ten thousand tons per year. But because the adhesive contains organic matters and has viscosity, the adhesive has the problems of safety and environmental protection and brings inconvenience to subsequent transportation, storage and utilization. In particular, in the utilization link, granulation pretreatment is often performed to meet the requirements of energy consumption saving and efficient disposal in the drying and material utilization processes. Therefore, how to complete the granulation process of the organic viscous soft body in an energy-saving and environment-friendly way is the subject of the prior research of scientific and technological workers in various industries.

For example, the utility model described in chinese patent 201620443778.4 "a novel soft body granulation apparatus" adopts the structure that the axes of three extrusion rollers are arranged at an angle of 120 degrees, and extrusion roller ridges are arranged on the extrusion rollers and driven by a driving motor, and two to three sections of extrusion roller sets can be arranged in a receiving groove according to requirements, belonging to the field of positive displacement extrusion granulation and being applied to wet sludge generated by domestic sewage and industrial wastewater; even if uniform particles can be successfully formed by the invention due to the high moisture content of the wet sludge, the particles are stuck together and damage uniform bodies when leaving the rolling group due to the self gravity of the soft body and the rolling process, and the problems of agglomeration and wall sticking are easy to occur in a drying system.

The invention patent described in the Chinese patent 201610813851.7 combined granulator comprises a multilayer box body, a feeding temporary storage bin, a cleaning blade, an elastic stripping frame, a material baffle plate, a flow guide plate and the like. The granules formed by the invention are formed by mechanical extrusion for a plurality of times, but have the defects that the granulation equipment is too complicated, and the problems of large equipment abrasion, high maintenance rate and the like are easily caused.

However, the granulation method and apparatus described conventionally have some disadvantages: (1) the integration of complete technology is not available, so that the prevention and control measures for preventing secondary pollution (such as organic gas, dust and the like) easily caused in the granulation process are avoided; (2) the granulation function is realized by drying and burning treatment, the granulation requirements of the soft material in transportation, storage and other utilization occasions are not provided, and the technical application range is limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned technical problem, provided a dry granulation equipment of viscidity software table, including the dry shaping jar of table, crowded cluster machine, disc prilling granulator, screening plant and dry powder injection device, crowded cluster machine is installed the dry shaping tank deck portion of table, the dry powder injection device is installed to the dry shaping jar lateral wall of table, the rotation of disc prilling plant is installed the bottom of the dry shaping jar of table, screening plant installs the below at disc prilling plant, the discharge gate is located the equipment bottom.

Furthermore, the top of the surface drying forming tank is provided with a dust filter cylinder, and the dust filter cylinder is externally provided with an exhaust fan, an active carbon adsorber and an exhaust outlet.

Furthermore, a heat insulation material is arranged outside the surface dry forming tank.

Furthermore, the dry powder spraying device comprises a two-fluid nozzle, the compressed gas generator is connected with a venturi throat in butt joint with a dry powder storage hopper positioned at the bottom of the vibrating screen machine, the two-fluid nozzle of the dry powder is of a flat structure, and the flat length is matched with the shape of the inner wall of the feeding hopper.

Furthermore, a baffling sedimentation partition plate is arranged in the surface drying forming tank and is over against the two-fluid nozzle.

Further, crowded string machine is including fixing feeder hopper and the elastic discharging cavity of rigid coupling in the feeder hopper bottom at the table dry forming tank top, the feeder hopper include shell and the strengthening rib of mutual rigid coupling, feeder hopper top center rigid coupling have explosion-proof inverter motor, the output shaft of motor is connected the rotation axis that has thrust effect more than two at least, the rotation axis rigid coupling has the convex blade of two at least equipartitions, elastic discharging cavity is by a plurality of about the inverted cone frustum constitute and form elastic support spare with the lateral wall.

Furthermore, a cavity of 10-100 mm is arranged in the disc granulating device, and an electric heating resistance wire or one of steam, flue gas and heat conducting oil media is arranged in the cavity.

Further, a material copying plate with an explosion-proof motor speed reducer is fixedly connected to the surface of the disc device, and the inclination angle of the material copying plate is 1-5 degrees.

Furthermore, the dust filter cartridge is connected with a compressed gas pipeline led out by the compressed gas generator.

The utility model has the advantages and positive effects that: organic viscous soft bodies enter a rotating shaft from a feed hopper to be pushed to reach an upper and lower combined inverted cone cavity to be made into soft body strings, the opening and closing action of an inverted cone elastic supporting piece acted on the wall of the feed hopper ensures the good passing rate of the hard material, and then the soft particles are cut by a two-fluid flat nozzle pneumatic pulse jet to realize the non-mechanical contact forming of the soft particles; secondly, the adhesion of the dry powder on the outer surface is realized by the self viscosity of the organic viscous soft body, and then the particles are further wrapped, solidified and surface hardened by the dry powder under the slow stirring of a disc with a heating surface and a material copying plate, so that the stable isolation and hardness among the soft particles are achieved, and the problems of easy caking, easy secondary crushing and wall sticking in the granulation process are effectively solved; moreover, gas purification measures are integrated in the system, so that the gas pollution of the granulated dust is simply and efficiently controlled; meanwhile, the system has the advantages of complete process, safety, sanitation, energy conservation, environmental protection, convenient popularization and use and contribution to the storage, transportation and utilization of organic viscous software.

Drawings

FIG. 1 is a schematic view of the system structure of the organic viscous soft granulation equipment of the present invention.

In the figure: 1. organic viscous soft body, 2, extrusion string, 3, compressed gas cutting, 4, powder coating isolation molding, 5, surface dry granulation, 6, vibration screening, 7, particle discharging, 8, organic powder, 9, tail gas dust removal and adsorption discharging, 101, a feeding port, 102, a rotary shaft explosion-proof variable frequency motor, 103, a feeding hopper, 104, an elastic discharging cavity, 201, a compressed gas generator, 202, a Venturi throat, 203, a two-fluid nozzle, 204, a flat jet nozzle, 205, a compressed gas pipeline, 301, a surface dry molding tank, 302, a heat preservation and insulation material, 303, a dust natural settling baffle, 401, a shoveling plate explosion-proof variable frequency motor, 402, a stir-frying plate, 403, a heated surface disc, 501, a vibration screening machine, 502, a particle discharging port, 503, a dry powder storage hopper, 601, a flow guide plate, 602, a dust filter cylinder, 603, a filter shell, 604, an exhaust fan, 605, a vacuum pump, a, Activated carbon adsorber, 606, gas discharge port.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:

referring to fig. 1, the equipment system for implementing the above granulation method comprises a feed hopper 103, a compressed gas generator 201, a surface dry forming tank 301, a heating surface disc 403, a vibrating screen 501, a filter housing 603, an exhaust fan 604, and an activated carbon adsorber 605, wherein the side of the top of the feed hopper 103 is provided with an inverted cone-shaped feed opening 101, the center of the top is provided with a rotating shaft explosion-proof variable frequency motor 102 connected with an extrusion rotating shaft, the bottom of the feed hopper 103 is provided with an elastic discharge cavity 104, a flat jet nozzle 204 and a two-fluid nozzle 203, the compressed gas generator 201 is connected with a venturi throat 202 butted with a dry powder storage hopper 503 positioned at the bottom of the vibrating screen 501, the filter housing 603 is connected with a compressed gas pipeline 205 led out from the compressed gas generator 201, the surface dry forming tank 301 is wrapped with a heat-insulating material 302 and internally provided with a natural dust settling baffle 303, the heating surface disc 403 is positioned at the bottom of the surface drying forming tank 301 and is tightly attached to a material frying plate 402 driven by a copying plate explosion-proof variable frequency motor 401, a particle discharge hole of the heating surface disc 403 is connected with a feed inlet of a vibration screening machine 501, the vibration screening machine is provided with a particle discharge hole 502 and a dry powder storage hopper 503 of the 501, a guide plate 601 is arranged at the top of an inner cylinder of the surface drying forming tank 301, an air outlet at the top of the surface drying forming tank 301 is communicated with a dust filter cylinder 602, a filter shell 603 is connected with an exhaust fan 604 and an active carbon adsorber 605 in series through pipelines, and a gas discharge hole 606 is arranged at the top of the active carbon adsorber 605.

When in use, the organic viscous soft body 1 enters a feeding port of an extrusion string 2 through a feeding conveyor, then the explosion-proof variable frequency motor drives a rotating shaft to extrude downwards and push the rotating shaft into an elastic volume cavity, and the string is cut by compressed gas 3 and is isolated and molded by coating powder 4; then the formed particles fall on a heated surface disc to be subjected to surface drying granulation 5, and the particles roll to a vibrating screen 6 part under the action of a stir-frying plate; after sieving, the hardened granules are discharged 7, and the sieved organic powder 8 is sprayed back onto the shaped granules by a two-fluid nozzle; organic gas and dust generated in the processes of powder spraying, material making and vibration enter tail gas for dust removal and adsorption and discharge 9.

Example 1

Oil field falling oil soil granulation, 1) oil soil with 5.6% of petroleum hydrocarbon content and 23.8% of water content is sent into a feeding port 101 of a feeding hopper 103 by a scraper truck and is extruded into strings and cut by gas, the pulse time of the gas cutting is 5s, and the gas generated by a compressed gas generator 201 is 0.7MPa air; 2) then, pre-prepared oil sludge dry powder is subjected to powder spraying and wrapping through a two-fluid nozzle 203, and the bottom electric heating disc 403 is heated and hardened; 3) and finally, separating by a vibration screening machine 501 to obtain finished product particles with the diameter of 5-22 mm, and immediately packaging the finished product particles without oil spill scattering and peculiar smell.

Example 2:

the biological activated sludge granulation for urban sewage treatment is implemented by setting the gas cutting pulse time of wet sludge with the water content of 75% to 2s, using prepared sludge dry powder as coating powder, using other process parameters as in example 1, obtaining the sludge granules with hardened surfaces, wherein the particle size is 5-12 mm, and the sludge granules can be immediately packaged, bagged and transported without generating peculiar smell.

Example 3 of an organic viscous soft energy-saving and environment-friendly granulation method: the granulation of the chemical residues in the olefin plant is carried out, the pulse time of gas cutting of the chemical residues with the water content of 81% and the organic component of 16.7% is set to 6s, after prepared material powder is stored in a dry powder storage hopper 503, the other process parameters are the same as those in example 1, continuous granulation of an equipment system is carried out, the quantity of granulated finished products is about 10 cubic meters, the particle sizes of the granules are 6-16 mm respectively, and then the granulated products enter a belt dryer for drying and a rotary kiln incinerator for treatment, so that the drying efficiency and the slag ignition reduction rate are improved, and tests prove that the granulation process has strong adaptability to materials and obvious energy-saving and environment-friendly benefits.

The utility model is characterized in that the organic viscous soft body is extruded into a string and then gas-cut, and then the dry powder is wrapped and solidified and the heated surface is hardened to complete the granulation process synchronously, so that the soft body after granulation is convenient to transport, store and utilize, and the device has the advantages of energy conservation and environmental protection.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a viscidity software table does granulation equipment, includes table dry forming tank, crowded cluster machine, disc prilling granulator, screening plant and dry powder injection apparatus, its characterized in that, crowded cluster machine is installed table dry forming tank deck portion, table dry forming tank lateral wall install dry powder injection apparatus, disc prilling apparatus rotates to be installed table dry forming tank's bottom, screening plant installs the below at disc prilling apparatus, and the discharge gate is located the equipment bottom.

2. The sticky soft surface drying granulation equipment as claimed in claim 1, wherein a dust filter cylinder is installed on the top of the surface drying forming tank, and an exhaust fan, an activated carbon absorber and an exhaust outlet are installed outside the dust filter cylinder.

3. The viscous soft skin drying granulation apparatus of claim 1, wherein the skin drying forming tank is externally provided with a thermal insulation material.

4. The sticky soft surface drying granulation apparatus as defined in claim 1, wherein the dry powder spraying device comprises a two-fluid nozzle, the compressed gas generator is connected to a venturi throat of a dry powder hopper at the bottom of the vibrating screen machine, the two-fluid nozzle is of a flat structure, and the flat length is adapted to the shape of the inner wall of the hopper.

5. The viscous soft surface drying granulation equipment as claimed in claim 4, wherein a baffling sedimentation partition is arranged in the surface drying forming tank, and the baffling sedimentation partition faces the two-fluid nozzle.

6. The sticky soft surface drying and granulating apparatus as claimed in claim 1, wherein the string extruding machine comprises a feed hopper fixed on the top of the surface drying forming tank and an elastic discharging cavity fixedly connected to the bottom of the feed hopper, the feed hopper comprises a housing and a reinforcing rib fixedly connected to each other, an explosion-proof variable frequency motor is fixedly connected to the center of the top of the feed hopper, the output shaft of the motor is connected to at least two rotating shafts with downward thrust, the rotating shafts are fixedly connected to at least two arc-shaped blades uniformly distributed, and the elastic discharging cavity is composed of a plurality of upper and lower inverted cone bodies and forms an elastic supporting member with the side wall.

7. The viscous soft surface drying granulation equipment as claimed in claim 1, wherein a cavity of 10-100 mm is arranged in the disc granulation device, and an electrical heating resistance wire or one of steam, flue gas and heat conducting oil medium is arranged in the cavity.

8. The viscous soft surface drying granulation equipment as claimed in claim 1, wherein a shoveling plate with an explosion-proof motor reducer is fixedly connected to the surface of the disc granulation device, and the tilting angle of the shoveling plate is 1-5 °.

9. The viscous soft skin drying granulation apparatus of claim 2, wherein the dust filter cartridge is connected to a compressed gas line from a compressed gas generator.