CN204297688U - Dustless material feeding equipment in a kind of glyphosate raw material production process - Google Patents

Abstract

The utility model provides a dust-free feeding equipment in the production process of glyphosate raw materials. The vacuum feeding pipeline and the compressed air feeding pipeline are respectively connected to the vacuum feeding machine, and the vacuum feeding machine is sequentially connected with the glycine sealing material through the back blowing pipeline. The silo and the polymer airtight silo are connected. There is also a synthetic kettle under the vacuum feeder. There is a filter on the upper part of the vacuum feeder, and a hopper on the lower part of the filter. The side of the vacuum feeder between the filter and the hopper A feeding pipe is arranged on the wall, and a rotatable bin door is arranged under the hopper. The utility model can eliminate dust flying caused by manual feeding, avoid proportion imbalance caused by waste of materials, solve environmental pollution caused by flying dust, and reduce environmental protection pressure.

Description

A dust-free feeding equipment in the production process of glyphosate raw materials

technical field

The utility model relates to a dust-free feeding equipment in the production process of glyphosate raw medicine, which is realized by installing a vacuum feeding machine on a synthesis kettle, relying on airtight connection, airtight pipeline transportation and airtight silo Dust-free feeding.

Background technique

In recent years, environmental protection has become the focus of increasing social attention. Especially since 2013, the state has intensified environmental protection inspections on the glyphosate industry, which puts many companies in the glyphosate industry at risk of bankruptcy, and it has become an urgent task to control the environmental pollution caused by the industry. In the process of producing glyphosate technical product by glycine method, the powder of paraformaldehyde and glycine is manually put into the synthesis kettle. The feeding process not only requires a lot of labor, but also causes the powder to fly and pollute the environment. The invention takes the vacuum feeding machine as the basic unit, adopts the weighing type material level gauge to measure the weight, uses the water ring vacuum system as the vacuum source, relies on the airtight connection, and achieves single-point material receiving and delivery through the distributed control conveying system. Multi-point feeding can effectively control dust flying and solve environmental pollution.

The existing feeding method is that the staff at the post hang the paraformaldehyde and glycine packed in the big bag to the top of the feeding port through the cantilever, and then untie the rope at the bottom of the big bag, so that the material enters the hopper under the action of gravity. Then the material is put into the kettle by hitting the hopper with an air hammer. This feeding method will cause a large amount of dust to fly around, which not only causes waste of materials, imbalance of proportioning, but also causes great dust pollution to the environment.

Contents of the invention

The utility model relies on the vacuum feeder and the airtight connection, the airtight pipeline transportation and the airtight silo, which not only eliminates the proportion imbalance caused by material loss, but also realizes dust-free feeding, and solves the dust flying belt. coming environmental pollution. Its equipment is as follows:

A dust-free feeding equipment in the production process of glyphosate raw materials. The vacuum feeding pipeline and the compressed air feeding pipeline are respectively connected to the vacuum feeding machine. It is connected to the closed material silo, and there is a synthesis kettle under the vacuum feeder.

The upper part of the vacuum feeder is provided with a filter, the lower part of the filter is provided with a hopper, the side wall of the vacuum feeder between the filter and the hopper is provided with a feeding pipe, and a rotatable silo is provided under the hopper Door.

A pneumatic valve 7-4 is arranged between the vacuum feeding pipeline and the vacuum feeder, a pneumatic valve 7-3 is arranged between the compressed air delivery pipe and the vacuum feeder, and the blowback pipeline is connected to the glycine sealing material. Pneumatic valves 7-2 are arranged between the bins, and pneumatic valves 7-1 are arranged between the backflushing pipeline and the polymer airtight silo.

A valve 8-1 is set between the backflushing pipeline between the sealed amino acid silo and the closed polymer silo, and a valve 8-2 is set between the vacuum feeder and the synthesis kettle.

The vacuum generated by the water ring vacuum pump of the utility model sucks the materials stored in the feeder into the feeder through the suction head of the vacuum feeder, and the materials slide down along the polished inner wall in the feeder. The filter completely separates the air from the material to prevent dust from polluting the vacuum and the atmosphere. Once the feed into the silo reaches a certain amount, the weighing level gauge on the silo will feed back the signal to the central control system, automatically cut off the vacuum source of the feed, and at the same time, the discharge door of the silo will automatically open, and the material will be put into the synthesis reactor . At the same time, the blowback cleaning valve is opened, and the compressed air will automatically clean the filter. At this point, a feeding unit ends.

In order to meet the existing production needs, the utility model needs to install a vacuum feeding machine with a conveying capacity of 9t/h and a vacuum degree of 0.4-0.6Mpa on the synthesis kettle. The weighing type material level gauge on the top is interlocked with the vacuum valve, discharge valve and blowback valve. When the weight of the silo is reduced to a certain value, the vacuum valve is closed, and the discharge valve and the blowback valve are opened.

Beneficial effect:

The utility model can eliminate dust flying caused by manual feeding, avoid proportion imbalance caused by waste of materials, solve environmental pollution caused by flying dust, and reduce environmental protection pressure.

Description of drawings

Figure 1 is a schematic structural diagram of dust-free feeding equipment in the production process of glyphosate raw materials. Synthetic kettle 1, polymer airtight silo 2, glycine airtight silo 3, vacuum feeder 4, vacuum conveying pipeline 5, compressed air conveying pipe 6, pneumatic valve 7-1, 2, 3, 4, Valves 8-1,2.

Figure 2 is a schematic structural view of the vacuum feeder. Filter 9, hopper 10, silo door 11.

Detailed ways

Example 1

A dust-free feeding equipment in the production process of glyphosate raw materials, the vacuum feeder 5 and the compressed air feeder 6 are respectively connected to the vacuum feeder 4, and the vacuum feeder 4 is sequentially connected with the glycine sealing material through the back blowing pipeline The bin 3 is connected with the polymer airtight bin 2, and the vacuum feeder 4 is also provided with a synthesis kettle 1.

The upper part of the vacuum feeder 4 is provided with a filter 9, the bottom of the filter 9 is provided with a hopper 10, and the side wall of the vacuum feeder 4 between the filter 9 and the hopper 10 is provided with a feed pipe, and the hopper 10 A rotatable feed bin door 11 is arranged below.

A pneumatic valve 7-4 is provided between the vacuum feeding pipeline 5 and the vacuum feeder 4, a pneumatic valve 7-3 is provided between the compressed air delivery pipe 6 and the vacuum feeder 4, and the blowback pipeline A pneumatic valve 7-2 is set between the glycine closed silo 3, and a pneumatic valve 7-1 is set between the backflushing pipeline and the polymer closed silo 2.

A valve 8-1 is set between the backflushing pipeline between the closed glycine silo 3 and the closed polymer silo 2, and a valve 8-2 is set between the vacuum feeder 4 and the synthesis kettle 1.

Due to the particularity of the glyphosate industry, this set of equipment has strict requirements on the material of the equipment, which needs to be resistant to acid and alkali corrosion. Therefore, the silo and the vacuum feeder must be made of 316L material, and the airtight connecting pipe must be connected with a metal hose to prevent the pipe from falling off due to vibration during the operation of the equipment.

This feeding device utilizes a vacuum feeder and relies on airtight connections, airtight pipeline transportation, and airtight silos. The feeding process is interlocked twice, the multi-polymer silo weighing level gauge is interlocked with the pneumatic valve 8-1, the pneumatic valve 8-3 and the pneumatic valve 8-4; the glycine silo weighing level gauge is connected with the The pneumatic valve 8-2, the pneumatic valve 8-3 and the pneumatic valve 8-4 are interlocked. When casting poly, the pneumatic valve 8-1 and the pneumatic valve 8-4 are opened, the pneumatic valve 8-2 is set to be closed, and the vacuum feeder starts to prepare materials until the setting value of the weighing level gauge. At this time, through interlock control, the pneumatic valve 8-1 and the pneumatic valve 8-4 are closed, the pneumatic valve 8-3 is opened for back blowing, and the material bin door is opened for feeding. When feeding glycine, the pneumatic valve 8-2 and the pneumatic valve 8-4 are opened, the pneumatic valve 8-1 is set to be closed, and the vacuum feeder starts to prepare materials until the setting value of the weighing level gauge. At this time, through interlock control, the pneumatic valve 8-1 and the pneumatic valve 8-4 are closed, the pneumatic valve 8-3 is opened for back blowing, and the material bin door is opened for feeding.

Claims (4)

1. dustless material feeding equipment in a glyphosate raw material production process, it is characterized in that: vacuum feeding pipe (5), pressurized air defeated road material pipe (6) are connected with vacuum feeder (4) respectively, vacuum feeder (4) is connected through blowback pipeline successively feed bin (3) airtight with glycine, the airtight feed bin of polymer (2), is also provided with synthesis reactor (1) under vacuum feeder (4).

2. dustless material feeding equipment in glyphosate raw material production process according to claim 1, it is characterized in that: vacuum feeder (4) internal upper part is provided with strainer (9), strainer (9) bottom is provided with hopper (10), vacuum feeder (4) sidewall between strainer (9) and hopper (10) is provided with feed-pipe, and hopper (10) is arranged with rotatable feed bin door (11).

3. dustless material feeding equipment in glyphosate raw material production process according to claim 1, it is characterized in that: between vacuum feeding pipe (5) to vacuum feeder (4), be provided with pneumavalve (7-4), pneumavalve (7-3) is provided with between pressurized air defeated road material pipe (6) to vacuum feeder (4), be provided with pneumavalve (7-2) between blowback pipeline to the airtight feed bin of glycine (3), blowback pipeline is provided with pneumavalve (7-1) between the airtight feed bin of polymers (2) at the most.

4. dustless material feeding equipment in glyphosate raw material production process according to claim 1, it is characterized in that: between the blowback pipeline between the airtight feed bin of glycine (3) and the airtight feed bin of polymer (2), be provided with valve (8-1), between vacuum feeder (4) to synthesis reactor (1), be provided with valve (8-2).