CN211537321U

CN211537321U - Shorten dry mixer of ammonium glyphosate granule production cycle

Info

Publication number: CN211537321U
Application number: CN201922472223.9U
Authority: CN
Inventors: 郭强; 王俊
Original assignee: Hubei Taisheng Chemical Co Ltd
Current assignee: Hubei Taisheng Chemical Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-22
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a shorten dry machine that mixes of ammonium glyphosate granule production cycle, dry machine that mixes is horizontal structure, and dry inside of mixing the machine is equipped with the main shaft, be equipped with a plurality of and main shaft vertically countershaft on the main shaft side by side, the countershaft adopts the huff connecting piece to be connected with the main shaft, is equipped with the paddle on the countershaft. The utility model can ensure that the structure of the main shaft is not changed through the half connection mode, thereby ensuring the strength of the main shaft and obviously prolonging the service cycle; meanwhile, the auxiliary shaft is more convenient to replace and maintain through the Harvard connection, the auxiliary shaft can be replaced and maintained on the premise that the main shaft is not affected, the stability and reliability of production equipment are greatly improved, the equipment production capacity of the ammonium glyphosate granules is improved, and the time consumed by equipment maintenance is reduced.

Description

Shorten dry mixer of ammonium glyphosate granule production cycle

Technical Field

The utility model belongs to the chemical industry field, concretely relates to shorten dry mixer of ammonium glyphosate granule production cycle.

Background

The glyphosate ammonium salt granules are prepared by crushing raw materials of ammonium bicarbonate and ammonium sulfate by a crusher, adding a mixture of the ammonium bicarbonate and the ammonium sulfate and the raw materials of sodium tripolyphosphate, special auxiliaries and the like into a mixer for reaction, and after the reaction is finished, putting the mixture into a semi-finished product reaction chamber for stacking reaction. And performing a bag expansion experiment on the mixed and stacked semi-finished product materials, and enabling the semi-finished product materials to enter a granulator through a bag pressing machine, a small-sized mixer and a variable frequency bin after the semi-finished product materials are qualified. The materials enter a dryer system through a granulator, and the materials are moved forward along with the vibration regularity of the dryer. Through the action of the air blower and the draught fan, the high-temperature air exchanges heat with the ammonium salt granules, and therefore the drying purpose is achieved. The ammonium salt granules with larger specific gravity are recovered through an outlet at the lower part of the dryer, and the granule powder with smaller specific gravity is recovered and reused through a cyclone separator. After the ammonium salt granules enter a linear sieve, selectively sieving the ammonium salt granules through sieves with different meshes to finally obtain qualified ammonium salt granules; and collecting the granules with unqualified granularity from an unqualified outlet for reuse.

Disclosure of Invention

In view of the above-mentioned prior art, the utility model discloses a synthetic reation kettle of former medicine production of glyphosate.

The utility model adopts the technical proposal that:

the utility model provides a shorten dry mixer of ammonium glyphosate granule production cycle, dry mixer is horizontal structure, and the inside of dry mixer is equipped with the main shaft, be equipped with a plurality of and main shaft vertically countershaft on the main shaft side by side, countershaft and main shaft adopt the huff connecting piece to connect, are equipped with the paddle on the countershaft.

Preferably, the bottom of the drying mixer is provided with a discharge port.

Preferably, the discharging opening is an acid-resistant silica gel pressing strip.

Preferably, a discharging rotating shaft is arranged below the discharging hole.

Preferably, the drying mixer is provided with a primary heating jacket and a secondary heating jacket from bottom to top on the surface of the main shaft, and the primary heating jacket is communicated with the secondary heating jacket through a pipeline positioned outside the drying mixer.

Preferably, a surfactant sprayer is arranged above the inside of the drying mixer.

The utility model discloses following beneficial effect has:

1. in the current production process, the auxiliary shaft is easy to bend, and the main shaft is often broken, the reason is analyzed that the auxiliary shaft penetrates through the main shaft in the installation mode, and the strength of the main shaft is obviously reduced due to the holes in the main shaft. Through the half connection form, the structure of the main shaft can be ensured not to be changed, the strength of the main shaft is ensured, and the service cycle is obviously prolonged; meanwhile, the auxiliary shaft is more convenient to replace and maintain through the Harvard connection, and the auxiliary shaft can be replaced and maintained on the premise that the main shaft is not affected. The integrated connection mode of the original main shaft and the auxiliary shaft is changed into the mode that the auxiliary shaft is connected to the main shaft in a Half (Half) mode, the auxiliary shaft is positioned on the main shaft through a key groove, and the two auxiliary shafts are fastened through bolts at the same time and are mutually supported on the main shaft, so that the aims of effectively connecting the main shaft and the auxiliary shaft and increasing the strength are fulfilled. And then, the mixing time is prolonged to 90 minutes from 45 minutes, the stacking time is improved from more than or equal to 7 days to no stacking, and the granulation process is directly carried out, so that the production period of the whole batch of ammonium glyphosate granules is shortened to 1 day from at least 8 days, the production efficiency is effectively improved, and the stock of the original auxiliary materials is reduced.

2. Greatly improves the stability and reliability of production equipment and the equipment production capacity of the ammonium glyphosate granules. Meanwhile, the maintenance efficiency of the equipment is improved, the time consumed by equipment maintenance is reduced, and the stable operation of production is ensured.

The method comprises the following specific steps: the auxiliary shaft can be bent and deformed when the original equipment produces about 500 tons, the auxiliary shaft needs to be cut off by plasma during maintenance, if the auxiliary shaft cannot be taken out due to the deformation caused by the hole opening of the main shaft, the main shaft needs to be corrected and reinforced, then a new auxiliary shaft is installed, the average time consumption is 2 multiplied by 12 hours, the existing equipment continuously produces 2000 tons, the fault does not occur, the maintenance is calculated once every 2000 tons, and the estimated time consumption is 2 multiplied by 6 hours. The annual capacity is calculated by 5000 tons per year of the designed capacity, and the annual production is increased by about 73 tons.

Calculating formula: (5000 ton/500 ton × 12h-5000 ton/2000 ton × 6 h) × 5000 ton/300 day/24 h =73 ton

The production period is reduced from the original 8 days to 1 day, the cost is increased, the factory leaving speed is increased, the stock of the original auxiliary materials is reduced, and the capital operation amount required in the production is reduced.

The method comprises the following specific steps: 1) raw powder 0.600 ton/ton x 30 batch/day x 7 day =126.000 ton

2) Ammonium bicarbonate 0.275 ton/ton x 30 batches/day x 7 days =57.750 ton

3) Ammonium sulfate 0.070 ton/ton × 30 batches/day × 7 day =14.700 ton

4) Sodium tripolyphosphate 0.035 ton/ton × 30 batches/day × 7 day =7.350 ton

5) Ammonium sulfate 0.082 ton/ton x 30 batches/day x 7 days =17.22 ton

3. The natural heat release is adopted originally, and the reaction period is long and needs about 8 days; the high-temperature heating mode of the primary heating jacket and the secondary heating jacket is adopted, so that the reaction is more efficient, and the reaction period is shortened to 1 day. Heating medium enters a primary heating jacket through a pump, a regulating valve and a flowmeter to heat the lower material, the temperature in the reactor rises, hot air goes upward to preheat the upper part of the reactor, and then the heating medium enters a secondary heating jacket to heat the upper material again; the whole drying mixer is reacted at high temperature, so that the ammonium glyphosate is rapidly synthesized, the aim of improving the reaction efficiency is fulfilled, the reaction time is controlled to be 90 minutes finally, the stacking links can be reduced, and continuous production is formed. Meanwhile, the energy is fully utilized through the primary heating jacket and the secondary heating jacket, and the energy consumption is effectively reduced.

Description of the drawings:

fig. 1 is a schematic view of the overall structure of the present invention.

Wherein: the device comprises a main shaft 101, a secondary shaft 102, a half connector 103, a paddle 104, a discharge hole 105, a rotating shaft 106, a primary heating jacket 107, a secondary heating jacket 108 and a surfactant sprayer 109.

The specific implementation mode is as follows:

the present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the drying mixer for shortening the production cycle of ammonium glyphosate granules is of a horizontal structure, a main shaft 101 is arranged inside the drying mixer, a plurality of auxiliary shafts 102 perpendicular to the main shaft 101 are arranged on the main shaft 101 in parallel, the auxiliary shafts 102 are connected with the main shaft 101 by a huff connector 103, and paddles 104 are arranged on the auxiliary shafts 102.

Preferably, the bottom of the drying mixer is provided with a discharge opening 105.

Preferably, the discharging hole 105 is made of an acid-resistant silica gel pressing strip. The sealing device replaces a pressing strip made of polytetrafluoroethylene materials, so that the sealing effect is better, and 2000 tons of sealing device can be continuously used without faults.

Preferably, a discharging rotating shaft 106 is arranged below the discharging opening 105.

Preferably, the drying mixer is provided with a primary heating jacket 107 and a secondary heating jacket 108 separately from each other from bottom to top on the surface of the main shaft 101, and the primary heating jacket 107 is communicated with the secondary heating jacket 108 through a pipe located outside the drying mixer.

Preferably, a surfactant sprayer 109 is provided above the inside of the dry mixer.

The utility model discloses process flow does:

1) mixing and crushing ammonium bicarbonate and ammonium sulfate, putting the crushed ammonium bicarbonate and ammonium sulfate, sodium tripolyphosphate and a special auxiliary agent (surfactant) into a mixing reactor, wherein the feeding mass ratio of the ammonium bicarbonate, the ammonium sulfate, the ammonium tripolyphosphate and the agent is (as above), continuously stirring the mixture for 45min, putting the mixture into a semi-finished product reaction chamber, and stacking the mixture for reaction for 3 days;

2) performing bag expansion experiment on the mixed and stacked semi-finished product materials, granulating the semi-finished product materials after the semi-finished product materials are qualified (no bulging phenomenon exists in a constant-temperature sealing bag at 60 ℃ for 2 hours) through a bag pressing machine, mixing, a storage bin (the semi-finished product is crushed by the bag pressing machine, the materials are further crushed by the mixing machine, the materials can uniformly enter a granulator by the storage bin), then drying the materials in a blast drier, the feeding amount of the raw materials into the dryer is 600-800kg/h, the inlet air temperature is 110-175 ℃, the outlet temperature is 60-80 ℃, the drying process adopts a continuous operation mode of inlet and outlet, meanwhile, a drain valve, a steam inlet valve, a linear sieve and a cooling fan of a dryer heater are opened, a finished ammonium salt granule product is obtained after sieving (the qualified ammonium glyphosate granule with the granularity of 40-10 meshes), and the sieve residues with the granularity of the upper layer and the lower layer which does not meet the requirement are returned to a storage bin for re-granulation;

3) during the granulation and drying processes, a very small amount (1-2%) of ammonium salt powder is generated, and powder with a lighter specific gravity (the specific gravity is about 0.58 g/ml) enters a cyclone separator for discharging; powder with heavier specific gravity (the specific gravity is about 0.63 g/ml) falls into the next layer of equipment in the drying process of a dryer, and the material is discharged;

4) the powder with lighter specific gravity is discharged from the lower opening after passing through the cyclone separator, and the tail gas enters the absorption tower for treatment.

Claims

1. The drying mixer capable of shortening the production cycle of ammonium glyphosate granules is characterized in that the drying mixer is of a horizontal structure, a main shaft (101) is arranged inside the drying mixer, a plurality of auxiliary shafts (102) perpendicular to the main shaft (101) are arranged on the main shaft (101) in parallel, the auxiliary shafts (102) are connected with the main shaft (101) through a half connecting piece (103), and paddles (104) are arranged on the auxiliary shafts (102).

2. The dry mixer for reducing the manufacturing cycle time of ammonium glyphosate granules of claim 1, wherein the dry mixer is provided with a drain (105) at the bottom.

3. The drying and mixing machine for shortening the production cycle of ammonium glyphosate granules according to claim 1, wherein a discharging rotating shaft (106) is arranged below the discharging opening (105).

4. The drying mixer for shortening the production cycle of ammonium glyphosate granules according to claim 1, wherein the drying mixer is provided with a primary heating jacket (107) and a secondary heating jacket (108) separately from the bottom to the top on the surface of the main shaft (101), and the primary heating jacket (107) is communicated with the secondary heating jacket (108) through a pipeline positioned outside the drying mixer.

5. The dry mixer of claim 1, wherein a surfactant sprayer (109) is disposed above the interior of the dry mixer for reducing the cycle time of ammonium glyphosate granules.