CN216432265U - Belt type vacuum drier for dibutyl hydroxy toluene - Google Patents
Belt type vacuum drier for dibutyl hydroxy toluene Download PDFInfo
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- CN216432265U CN216432265U CN202122455518.2U CN202122455518U CN216432265U CN 216432265 U CN216432265 U CN 216432265U CN 202122455518 U CN202122455518 U CN 202122455518U CN 216432265 U CN216432265 U CN 216432265U
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Abstract
The utility model discloses a belt vacuum drying machine for dibutyl hydroxyl toluene, include: the feeding system is provided with a feeding bin, a material conveyor and a feeder which are connected in sequence; the drying system comprises a shell and a drying conveyor belt group arranged in the shell, and the output end of the feeding machine is connected with the input end of the drying conveyor belt group; the blanking system is provided with a discharge hopper and a discharge bin which are sequentially connected, and the input end of the discharge hopper is connected with the output end of the drying conveyor belt group; and the vacuumizing system is arranged at the top of the shell and is used for vacuumizing the drying system. The utility model discloses a belt vacuum drying machine can carry out the continuity drying to BHT, and product quality is stable, and purity is high, and low in production cost, green.
Description
Technical Field
The utility model relates to a dry technical field of dibutyl hydroxyl toluene particularly relates to a belt vacuum drying machine for dibutyl hydroxyl toluene.
Background
The dibutyl hydroxy toluene (BHT) is an antioxidant which is used earlier, has larger yield and wider application range in China at present. In the production process of BHT, drying treatment is generally needed, at present, the drying of domestic BHT production basically adopts vibrated fluidized bed drying, and the drying process flow is as follows: starting a draught fan, a blower and a cooling fan of the vibrated fluidized bed, and controlling pressure by wind pressure; introducing steam into a heat exchanger of the vibrated fluidized bed dryer to heat and control the temperature; then, a dibutyl hydroxy toluene (BHT) feeding hopper distributing machine above the fluidized bed is started, crystallized dibutyl hydroxy toluene (BHT) centrifugally desolventized is added into the fluidized bed at a constant speed, fluidized and dried, and then sampled and tested from a discharge port of the vibrating fluidized bed, and after the required quality index is reached, a discharge valve is opened, and screening is carried out through a vibrating screen.
Although this process can achieve the effect of drying BHT, it still has drawbacks, such as: the process has large air quantity, and the tail gas is difficult to treat in an environment-friendly way; the product is easy to be powdered due to dynamic drying; the fine powder is not easy to recover, and the waste is serious; the labor intensity of workers is high, and the number of users is large; the falling of the product can affect the productivity and the related quality control indexes.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a belt vacuum drying machine for dibutyl hydroxyl toluene to prior art's not enough, this desiccator can carry out the continuity drying to BHT, and product quality is stable, and purity is high, and low in production cost, green.
In order to achieve the above object, the utility model adopts the following technical scheme:
a belt vacuum dryer for butylated hydroxytoluene comprising:
the feeding system is provided with a feeding bin, a material conveyor and a feeder which are connected in sequence;
the drying system comprises a shell and a drying device arranged in the shell, wherein the drying device comprises a drying conveyor belt group, and the output end of the feeding machine is connected with the input end of the drying conveyor belt group;
the blanking system is provided with a discharge hopper and a discharge bin which are sequentially connected, and the input end of the discharge hopper is connected with the output end of the drying conveyor belt group;
and the vacuumizing system is arranged at the top of the shell and is used for vacuumizing the drying system.
Preferably, the drying conveyor set comprises a heating conveyor set and a cooling conveyor set, an output end of the heating conveyor set is connected with an input end of the cooling conveyor set, and an output end of the cooling conveyor set is connected with an input end of the discharging hopper.
Preferably, the heating conveyor belt group is provided with a heating exchanger communicated with each other below the belt, and the cooling conveyor belt group is provided with a cooling exchanger communicated with each other below the belt.
Preferably, the shell is internally provided with a distributing device, the input end of the distributing device is connected with the output end of the feeding machine, the output end of the distributing device is connected with the input end of the drying conveyor belt group, and the distributing device is convenient for distributing materials on the transmission belt more uniformly.
Preferably, the output end of the discharging bin is provided with a screening system, and the dried material is screened by the screening system to remove large particles so as to obtain the material within a required particle range.
Preferably, the output end of the screening system is provided with a product packaging system for packaging the screened materials.
Preferably, the both sides of casing all are equipped with observation device, through observation device observes the drying process to the dry running state of observation that operating personnel is better.
Preferably, the belt vacuum drying machine is further provided with a condensation recovery system, the condensation recovery system comprises a condenser and a solvent recovery device which are sequentially connected, the input end of the condenser is connected with a vacuum pumping system, and tail gas pumped out by the vacuum pumping system enters the solvent recovery device to be recovered after being condensed by the condenser.
Preferably, the belt vacuum dryer is further provided with a PLC automatic control system, the belt vacuum dryer is controlled through the PLC automatic control system, the function setting and the adjustment can be completed on the touch man-machine panel, and the signal connection to the central control room is directly controlled by a computer.
Preferably, the belt vacuum dryer is further provided with an automatic cleaning system, and the drying system is cleaned through the automatic cleaning system.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a belt vacuum drying machine, earlier through the evacuation system with the casing in take out to high vacuum state, the adjustment adds the temperature that heat transfer belt group and hole but the conveyer belt group, and open the conveyer belt group, later wait that the dry material article passes through feed system and gets into drying system, evenly distributed on adding the heat transfer belt through the distribution device, later and adjust the belt rotational speed, the material article is dried along with the operation of adding the heat transfer belt group, the material article after the drying gets into and cools off the cooling conveyer belt group and cools off the back and get into blanking system, and pack after the vibration screening; the drying process is owing to under high vacuum state, and with the mode of contact heat transfer, give the material with the required energy transfer of drying, solvent and moisture in the material are consequently constantly evaporated, make the solvent and moisture and the heat of material constantly take away, thereby play low temperature drying's function, make whole process be in continuous static drying, the product powderization has been avoided, the quality of product has been guaranteed, product purity is high, the steady quality, and simultaneously, this desiccator does not need practical big amount of wind, tail gas is few, and be equipped with condensation recovery system, therefore, the carrier wave energy saving device is low in cost, and is green.
2. The belt type vacuum drier of the utility model is operated fully automatically, and has convenient operation, safety and reliability, low labor intensity of staff, low energy consumption, high productivity and low production cost; and in the operation process of the whole drying system, BHT does not leak, all runs in the equipment, is safely controlled in place, has good working environment and meets GMP standard in production.
Drawings
Fig. 1 is a schematic structural diagram of a belt vacuum dryer for dibutylhydroxytoluene according to the present invention.
Description of reference numerals: 1. a feed system; 11. a feeding bin; 12. a material conveyor; 13. a feeder; 2. a drying system; 21. a housing; 211. a material distribution device; 22. a drying conveyor set; 221. heating the set of conveyor belts; 2211. a heat exchanger; 222. cooling the conveyor belt set; 2221. a cooling exchanger; 3. a blanking system; 31. a discharge hopper; 32. a discharging bin; 4. a vacuum pumping system; 5. a screening system; 6. a product packaging system; 7. an observation device; 8. a condensation recovery system; 81. a condenser; 82. a solvent recovery device.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways.
The utility model provides a belt vacuum drying machine for dibutyl hydroxyl toluene, under high vacuum state, through dry conveyer belt group realization contact drying, whole drying process is static in succession, and the quality index is stable.
In a specific embodiment, there is provided a belt vacuum dryer for dibutylhydroxytoluene, including:
the feeding system 1 is provided with a feeding bin 11, a material conveyor 12 and a feeder 13 which are connected in sequence;
the drying system 2 comprises a shell 21 and a drying conveyor belt group 22 arranged in the shell, and the output end of the feeder 13 is connected with the input end of the drying conveyor belt group 22;
the blanking system 3 is provided with a discharge hopper 31 and a discharge bin 32 which are connected in sequence, and the input end of the discharge hopper 31 is connected with the output end of the drying conveyor belt group 22;
the vacuumizing system 4 is arranged at the top of the shell and is used for vacuumizing the drying system; preferably, a group of vacuum-pumping pipes are arranged in the middle of the top of the shell, and the drying system is vacuumized by a vacuum pump.
In a preferred embodiment, the drying conveyor set 22 comprises a heating conveyor set 221 and a cooling conveyor set 222, the output of the heating conveyor set 221 being connected to the input of the cooling conveyor set 222, and the output of the cooling conveyor set 221 being connected to the input of the discharge hopper 31.
In a more preferred embodiment, the heating conveyor belt group 221 and the cooling conveyor belt group 222 are parallel to each other, the heating conveyor belt group has ten layers of heating conveyor belts parallel to each other, the running directions of the adjacent heating conveyor belts are opposite, and the output end of the heating conveyor belt in the previous layer is connected with the input end of the heating conveyor belt in the next layer; or when the materials are arranged, the distance difference exists between the adjacent heating conveyor belts in the running direction, and the materials directly fall from the front layer of heating conveyor belt to the rear layer of heating conveyor belt.
In another preferred embodiment, the set of cooling conveyors has one layer of cooling conveyors, the input end of which is connected to the output end of the last layer of heating conveyors.
It should be understood that the number of the heating conveyor belt groups and the cooling conveyor belt groups can be set according to actual needs, and the angles and the connection modes of the heating conveyor belt groups and the cooling conveyor belt groups can also be set according to actual conditions, and only the purpose of drying the material products is achieved.
In other preferred embodiments, the heating conveyor belt groups have their belt bottoms provided with heating exchangers 2211 in communication with each other, and the cooling conveyor belt groups have their belt bottoms provided with cooling exchangers 2221 in communication with each other.
In a preferred embodiment, a material distributing device 211 is arranged in the housing, an input end of the material distributing device 211 is connected with an output end of the feeder 13, an output end of the material distributing device 211 is connected with an input end of the drying conveyor belt group, and the material distributing device facilitates more uniform distribution of the materials on the conveyor belt.
More preferably, the feeding height of the distributing device 211 is adjustable, so that the feeding state can be adjusted to an optimal state to meet the material requirement.
In another preferred embodiment, the output end of the discharge bin 32 is provided with a screening system 5, such as a vibratory screening machine, and the dried material is screened by the vibratory screening machine to remove large particles and obtain a material with a desired particle range.
In another preferred embodiment, the output end of the screening system 5 is provided with a product packaging system 6 for packaging the screened material.
In a preferred embodiment, both sides of the shell are provided with observation devices 7, and the drying process is observed through the observation devices 7, so that an operator can observe the drying operation condition better. The observation device is preferably an observation sight glass, and observation sight glasses can be arranged at the body, the feeding end, the discharging end and other positions of the dryer so as to meet the requirement of an operator for observing the drying process.
In a preferred embodiment, the belt vacuum dryer is further provided with a condensation recovery system 8, the condensation recovery system comprises a condenser 81 and a solvent recovery device 82 which are sequentially connected, the input end of the condenser 81 is connected with the vacuum-pumping system 4, and tail gas pumped by the vacuum-pumping system enters the solvent recovery device 82 for recovery after being condensed by the condenser 81.
In other preferred embodiments, the belt vacuum dryer is further provided with a PLC automatic control system, the belt vacuum dryer is controlled through the PLC automatic control system, the function setting and the adjustment can be completed on the touch man-machine panel, and the signal connection to the central control room is directly controlled by a computer.
In other preferred embodiments, the belt vacuum dryer is further provided with an automatic cleaning system, and the cleaning of the drying system is realized through the automatic cleaning system; for example, in a CIP online automatic cleaning system, a rotary spray device is installed at a proper position on the top of the inner wall of a dryer, and high-pressure water pumped by a cleaning pump is used for washing the inner wall of a cylinder body, so that the inner wall is thoroughly cleaned without residues; nozzles are arranged on the upright columns at two sides of the equipment to clean the surface of the crawler belt and the surface of the upright column; in order to ensure the cleaning of the surface of the slab and the inner walls of the tracks, the apparatus may also be equipped with lifting cleaning devices.
The utility model discloses a use as follows for dibutyl hydroxyl toluene's belt vacuum drying machine:
and starting a vacuum pumping system, then, recovering tail gas in a condensation recovery system, starting a heating exchanger below a belt of a heating conveyor belt after the tail gas reaches the required drying vacuum degree, controlling the temperature to be about 60 ℃, starting a cooling exchanger below the belt of a cooling conveyor belt, controlling the temperature to be about 30 ℃, and then, starting the conveyor belt.
At the moment, BHT to be dried enters a drying system through a feeding system, is uniformly distributed on a heating conveyor belt through a distribution device, the rotating speed of the belt is adjusted, the material is dried along with the operation of a heating conveyor belt group, and is dried through a plurality of heating conveyor belts, after the BHT reaches the required quality index, the material enters a cooling conveyor belt, the dried material enters a cooling conveyor belt group to be cooled, then enters an unloading system, and is subjected to product packaging after the required particles are selected through screening, and then the finished product is packaged and stored in a warehouse.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (10)
1. A belt vacuum dryer for dibutylhydroxytoluene, comprising:
the feeding system is provided with a feeding bin, a material conveyor and a feeder which are connected in sequence;
the drying system comprises a shell and a drying conveyor belt group arranged in the shell, and the output end of the feeding machine is connected with the input end of the drying conveyor belt group;
the blanking system is provided with a discharge hopper and a discharge bin which are sequentially connected, and the input end of the discharge hopper is connected with the output end of the drying conveyor belt group;
and the vacuumizing system is arranged at the top of the shell and is used for vacuumizing the drying system.
2. The belt vacuum dryer for butylated hydroxytoluene according to claim 1, wherein the drying conveyor belt group includes a heating conveyor belt group and a cooling conveyor belt group, an output end of the heating conveyor belt group is connected with an input end of the cooling conveyor belt group, and an output end of the cooling conveyor belt group is connected with an input end of the discharge hopper.
3. The belt vacuum dryer for butylated hydroxytoluene as claimed in claim 2, wherein the heating conveyor belt group is provided with heating exchangers communicated with each other under the belts, and the cooling conveyor belt group is provided with cooling exchangers communicated with each other under the belts.
4. The belt vacuum dryer for butylated hydroxytoluene according to claim 1, wherein a distributing device is provided in the housing, an input end of the distributing device is connected to an output end of the charging machine, and an output end of the distributing device is connected to an input end of the drying conveyor belt group.
5. The belt vacuum dryer for butylated hydroxytoluene as claimed in claim 1, wherein the output end of the discharge bin is provided with a screening system, and the dried material is screened by the screening system.
6. The belt vacuum dryer for butylated hydroxytoluene as claimed in claim 5, wherein the output end of the screening system is provided with a product packaging system for packaging the screened material.
7. The belt vacuum dryer for butylated hydroxytoluene as claimed in claim 1, wherein the observation device is arranged on both sides of the shell, and the drying process is observed through the observation device.
8. The belt vacuum dryer for butylated hydroxytoluene according to claim 1, wherein the belt vacuum dryer is further provided with a condensation recovery system, the condensation recovery system comprises a condenser and a solvent recovery device which are connected in sequence, and an input end of the condenser is connected with the vacuum pumping system.
9. The belt vacuum dryer for butylated hydroxytoluene as claimed in claim 1, wherein the belt vacuum dryer is further provided with a PLC automatic control system, and the control of the belt vacuum dryer is realized through the PLC automatic control system.
10. The belt vacuum dryer for butylated hydroxytoluene as claimed in claim 1, wherein the belt vacuum dryer is further provided with an automatic cleaning system, and cleaning of the drying system is achieved through the automatic cleaning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122455518.2U CN216432265U (en) | 2021-10-12 | 2021-10-12 | Belt type vacuum drier for dibutyl hydroxy toluene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122455518.2U CN216432265U (en) | 2021-10-12 | 2021-10-12 | Belt type vacuum drier for dibutyl hydroxy toluene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216432265U true CN216432265U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122455518.2U Active CN216432265U (en) | 2021-10-12 | 2021-10-12 | Belt type vacuum drier for dibutyl hydroxy toluene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216432265U (en) |
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2021
- 2021-10-12 CN CN202122455518.2U patent/CN216432265U/en active Active
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