CN211141542U - A kind of production device of food grade and feed grade anhydrous magnesium sulfate - Google Patents

Abstract

The utility model discloses a production device of food grade, feed grade anhydrous magnesium sulfate, including the reactor that has agitating unit, the liquid outlet of reactor passes through the pump and links to each other with the pressure filter pipeline, the liquid outlet end and the intermediate tank pipeline of pressure filter link to each other, the intermediate tank passes through the measuring pump and links to each other with spray drying tower pipeline, spray drying tower links to each other with first dust collector, the product exit end of spray drying tower bottom passes through screw conveyer and links to each other with the polymerization desicator, the polymerization desicator links to each other with the second dust collector, the product exit end of polymerization desicator links to each other with screw conveyer, the screw conveyer exit end links to each other with packagine machine; the utility model has the advantages that: the production process is shortened, a large amount of energy is saved, the production cost is reduced, and the product quality is improved.

Description

A kind of production device of food grade and feed grade anhydrous magnesium sulfate

technical field

The utility model relates to a chemical production equipment, in particular to a production device of food grade and feed grade anhydrous magnesium sulfate, which belongs to the field of chemical production equipment.

Background technique

Existing food-grade and feed-grade magnesium sulfate are generally prepared from industrial-grade magnesium sulfate by dissolving and recrystallization. The obtained magnesium sulfate heptahydrate is then dried and calcined in a fluidized bed to obtain anhydrous magnesium sulfate, which is not only complicated in process, but also has high energy consumption.

Utility model content

In order to solve the above problems, the utility model designs a production device of food grade and feed grade anhydrous magnesium sulfate, which shortens the production process, saves a lot of energy, reduces the production cost and improves the product quality.

The technical scheme of the present utility model is:

A production device for food-grade and feed-grade anhydrous magnesium sulfate, including a reactor with a stirring device, the liquid outlet of the reactor is connected with a filter press pipeline through a pump, and the material is reacted in the reactor. Pump into the filter press for filtration, the liquid outlet end of the filter press is connected to the pipeline of the intermediate tank, the intermediate tank is connected to the pipeline of the spray drying tower through the metering pump, and the spray drying tower is connected to the first dust removal device , the filtrate enters the intermediate tank, and then is pumped into the spray drying tower with the first dust removal device with a metering pump. The product outlet end at the bottom of the spray drying tower is connected to the polymerization dryer through a screw conveyor, and the polymerization dryer is connected to the first The two dust removal devices are connected, and the dried product enters the polymerization dryer from the bottom of the spray drying tower through the screw conveyor for secondary drying. The product outlet end of the polymerization dryer is connected to the screw conveyor, and the outlet end of the screw conveyor is connected to the The packaging machine is connected, and the re-dried product is conveyed to the packaging machine through a screw conveyor for packaging to obtain anhydrous magnesium sulfate product.

The produced magnesium sulfate saturated solution is filtered by a filter press, and then directly enters the spray drying tower for drying, eliminating the need for cooling crystallization and drying to make magnesium sulfate heptahydrate, and then heating and dissolving, cooling and recrystallization, and drying again. and other steps, the operation process is simple, the energy consumption is low, the efficiency is high, and the quality is good.

Further, the pump is a centrifugal pump.

Further, the first dust removal device and the second dust removal device are both dust collectors.

Further, the screw conveyor is provided with a cooling device.

During production, magnesium oxide powder and sulfuric acid are added to the reactor for reaction, and the reacted feed liquid is pumped into the chamber filter press for filtration, the filtrate enters the intermediate tank, and then is pumped into the spray drying tower with a dust removal device with a metering pump. The dried product enters the polymerization dryer with dust removal device from the bottom of the spray tower through the screw conveyor for secondary drying, and the re-dried product is transported to the packaging machine through the screw conveyor with cooling device for packaging to obtain anhydrous magnesium sulfate. product.

The beneficial effects of the utility model are as follows: the production process is shortened, the drying time is short, the product can keep uniform fine particles, the product has good dispersibility, fluidity and solubility, a large amount of energy is saved, and the production cost is reduced; The effect is good, and the liquid can be dried into a powder product at one time without crushing and screening.

The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed ways

The preferred embodiments of the present invention will be described below. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

Example 1

As shown in Figure 1, a production device for food-grade and feed-grade anhydrous magnesium sulfate includes a reactor 1 with a stirring device, and the liquid outlet of the reactor 1 is connected to the inlet chamber through a pump (centrifugal pump) 2 The filter press 3 is connected to the pipeline, and the material and liquid that has been reacted in the reactor is pumped into the chamber filter press 3 for filtration with a pump 2, and the liquid outlet end of the chamber filter press 3 is connected to the intermediate tank 4 pipeline. The intermediate tank 4 is connected with the spray drying tower 6 pipeline through the metering pump 5, the spray drying tower 6 is connected with the first dust removal device (dust collector) 7, the filtrate enters the intermediate tank 4, and then the metering pump 5 is used to drive into the The spray drying tower 6 of the first dust removal device 7, the product outlet end at the bottom of the spray drying tower 6 is connected with the polymerization dryer 9 through the screw conveyor 8, and the polymerization dryer 9 is connected with the second dust removal device (dust collector) 10 Connected, the dried product enters the polymerization dryer 9 from the bottom of the spray drying tower 6 through the screw conveyor 8 for secondary drying, and the product outlet end of the polymerization dryer 9 is connected with the screw conveyor 11, and the screw conveyor 11 A jacketed water circulation cooling device is provided, and the outlet end is connected to the packaging machine. The re-dried product is transported to the packaging machine 12 through a screw conveyor 11 with a cooling device for packaging to obtain anhydrous magnesium sulfate products.

The produced magnesium sulfate saturated solution is filtered by a filter press, and then directly enters the spray drying tower for drying, eliminating the need for cooling crystallization and drying to make magnesium sulfate heptahydrate, and then heating and dissolving, cooling and recrystallization, and drying again. and other steps, the operation process is simple, the energy consumption is low, the efficiency is high, and the quality is good.

During production, magnesium oxide powder and sulfuric acid are added to the reactor for reaction, and the reacted feed liquid is pumped into the chamber filter press for filtration, the filtrate enters the intermediate tank, and then is pumped into the spray drying tower with a dust removal device with a metering pump. The dried product enters the polymerization dryer with dust removal device from the bottom of the spray tower through the screw conveyor for secondary drying, and the re-dried product is transported to the packaging machine through the screw conveyor with cooling device for packaging to obtain anhydrous magnesium sulfate. product.

Claims (5)

1. a production device of food grade, feed grade anhydrous magnesium sulfate, is characterized in that: comprise the reactor with stirring device, the liquid outlet of described reactor is connected with filter press pipeline by pump, and described pressure The liquid outlet end of the filter is connected with the pipeline of the intermediate tank, the intermediate tank is connected with the pipeline of the spray drying tower through the metering pump, the spray drying tower is connected with the first dust removal device, and the product outlet end of the bottom of the spray drying tower passes through the pipeline. The screw conveyor is connected with the polymerization dryer, the polymerization dryer is connected with the second dust removal device, the product outlet end of the polymerization dryer is connected with the screw conveyor, and the outlet end of the screw conveyor is connected with the packaging machine. 2. the production device of a kind of food grade, feed grade anhydrous magnesium sulfate according to claim 1, is characterized in that: described pump is centrifugal pump. 3. The production device of a food grade and feed grade anhydrous magnesium sulfate according to claim 1, characterized in that: the first dust removal device and the second dust removal device are both dust collectors. 4. The production device of a food-grade and feed-grade anhydrous magnesium sulfate according to claim 1, wherein the screw conveyor is provided with a cooling device. 5. The production device of a food grade and feed grade anhydrous magnesium sulfate according to claim 4, characterized in that: the cooling device is a jacket water circulation cooling device.

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