CN209840653U - Zinc sulfate drying device - Google Patents

Abstract

The utility model relates to a zinc sulfate drying device, which comprises a screening cylinder, an air drying pipe and a fan, wherein the screening cylinder comprises an upper cylinder body and a lower dust collecting bag, the top of the upper cylinder body is provided with a feed inlet, one side of the upper cylinder body is provided with a discharge port connected with the air drying pipe, the upper cylinder body is internally provided with a screen mesh extending from the lower part of the feed inlet to the discharge port, and the screen mesh is provided with a vibrating pump; the air drying pipe is a spiral heating pipe. The utility model removes dust from the dehydrated crystal and then dries the crystal, thereby avoiding the pollution of crystal dust and fully drying the crystal surface; adopt spiral heating pipe, prolonged wind-force transfer passage, the heating pipe can be simultaneously to crystal and carry the wind heating for the crystal through obtains more even drying, has both satisfied the drying requirement, can not make the crystal temperature too high again, has reached later stage packing and storage requirement, has improved zinc sulfate's product quality and production efficiency.

Description

Zinc sulfate drying device

Technical Field

The utility model relates to a processing production of industrial chemicals indicates a zinc sulfate drying device very much.

Background

Zinc sulfate as a chemical raw material is produced by mixing and reacting raw materials, then removing impurities by displacement, purifying to obtain a solution, cooling, crystallizing and dehydrating to obtain a zinc sulfate product, and the application range of the product is wide. For example, zinc sulfate heptahydrate is used in soil improvement, rice planting and mineral dressing. After zinc sulfate normally dewaters, certain free water is still adsorbed on the crystal surface mostly, if remove and not net deposit the back surface and will agglomerate, the longer the time the agglomeration just more big, influence product quality and use. Therefore, how to quickly and effectively promote crystallization and drying is very important for improving the production efficiency of zinc sulfate. The existing drying procedure generally adopts a centrifuge to dry and then directly enters a rotary kiln to dry, a gas hot-blast stove is used for directly heating and drying, the temperature of the dried material is about 200 ℃, the dried material is conveyed to enter a rotary vibration sieve and then enters mixed packaging, the packaging temperature is higher, and the influence on packaging materials is larger. Meanwhile, dust formed by crystallization enters drying equipment along with the crystals, so that the equipment is easily polluted by the dust, and the crystals are adhered with the dust, so that the surfaces of the crystals cannot be effectively dried.

Disclosure of Invention

The utility model aims at improving and innovating the defects and the problems existing in the background technology and providing a zinc sulfate drying device for drying the surface of a zinc sulfate crystal body.

The technical scheme of the utility model is that construct one kind including screening section of thick bamboo, connect the air-dry pipe at screening section of thick bamboo exit end and connect the drying device at the fan that air-dries the pipe end.

The screening cylinder comprises an upper cylinder body and a lower dust collecting bag, a feed inlet is formed in the top of the upper cylinder body, a discharge port is formed in one side of the upper cylinder body and connected with an air drying pipe, a screen extending from the lower portion of the feed inlet to the discharge port is arranged in the upper cylinder body, and a vibration pump is arranged on the screen; the air drying pipe is a spiral heating pipe.

In one embodiment, the front end of the screen is an inclined plate with an inclined angle of 5-15 degrees, and the rear end of the screen is a flat plate horizontal to the discharge hole.

In one embodiment, the air drying pipe is a spiral pipe which is consistent with the horizontal direction of the discharge hole of the screening cylinder, the air drying pipe is a coaxial double-layer pipe, the inner layer is a crystal channel, and the outer layer is a heat source channel.

Preferably, a heating pipe is arranged in the heat source channel, or a heat medium, such as steam, is introduced.

In one embodiment, the lower dust collection bag is arranged at the bottom end of the upper cylinder body in a replaceable way.

In one embodiment, the feed inlet and the discharge outlet are provided with control valves.

The utility model has the advantages and beneficial effect:

the utility model removes dust from the dehydrated crystal and then dries the crystal, thereby avoiding the pollution of crystal dust and fully drying the crystal surface; adopt spiral heating pipe, prolonged wind-force transfer passage, the heating pipe can be simultaneously to crystal and carry the wind heating for the crystal through obtains more even drying, has both satisfied the drying requirement, can not make the crystal temperature too high again, has reached later stage packing and storage requirement, has improved zinc sulfate's product quality and production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an enlarged view of fig. 1I.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly disposed or connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in figure 1, the zinc sulfate drying device comprises a screening cylinder, an air drying pipe 2 connected to the outlet end of the screening cylinder, and a fan 3 connected to the tail end of the air drying pipe.

Specifically, as shown in fig. 1, the screening drum includes an upper drum body 1 and a lower dust collecting bag 4. Wherein: the top of the upper cylinder body 1 is provided with a feed inlet 9, and one side of the upper cylinder body 1 is provided with a discharge outlet 10 which is connected with the air-drying pipe 2. A screen 5 extending from the lower part of the feed inlet 9 to the discharge outlet 10 is arranged in the upper cylinder 1, and a vibration pump 6 is arranged on the screen 5. The crystals and the crystal powder are screened through the screen and the vibration pump in the upper barrel, the crystals slide to the air drying pipe along the screen to be surface-dried, and the crystal powder enters the dust bag, so that the separation is convenient and effective.

More specifically, as shown in fig. 1, the front end of the screen 5 is an inclined plate with an inclination angle of 5-15 degrees, and the rear end is a flat plate horizontal to the discharge hole. Under the assistance of the vibration pump, the small-angle inclined design at the front end of the screen can enable crystals falling from the feeding hole to slowly move towards the discharging hole, and the flat plate at the rear end can enable the stay time of the crystals on the screen to be longer, so that the screening is more thorough.

More specifically, as shown in fig. 1, the lower dust collecting bag 4 is replaceably mounted to the bottom end of the upper cylinder 1. And a replaceable dust bag is adopted, so that the dust collection condition can be conveniently and visually observed, and the dust can be replaced in time.

More specifically, as shown in fig. 1, the feed inlet 9 and the discharge outlet 10 are both provided with control valves to control feeding and discharging.

Specifically, as shown in fig. 1, the air drying pipe 2 is a spiral heating pipe.

More specifically, as shown in fig. 1, the air drying pipe 2 is a spiral pipe which is horizontally consistent with the discharge port 10 of the sieving cylinder. The air drying pipe 2 is a coaxial double-layer pipe, the inner layer is a crystal channel 7, and the outer layer is a heat source channel 8. The large-amplitude spiral propelling direction consistent with the outlet end direction is adopted, so that the smooth passing of crystals can be ensured; the double-layer tube is adopted to ensure that the crystal passing through the inner layer can be uniformly heated in the tube.

More specifically, as shown in fig. 1, a heating pipe 8-1 is disposed in the heat source passage 8, as shown in fig. 2. Or a heat medium, such as steam, is introduced into the heat source channel 8. The heating pipe or the heat medium is heated for convenient control or adjustment.

During operation, dehydrated crystals fall into the front end of the inclined screen through the feeding hole, the powder-attached granular crystals slowly move to the discharging hole on the screen under the action of the vibrating pump, meanwhile, the crystal powder is screened and falls into the dust collecting bag, the crystals are heated through the air drying pipe under the action of strong wind force of the fan to dry the surface, and finally, the crystals fall into the material receiving chamber to be packaged and put in storage.

The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.

Claims (6)

1. The utility model provides a zinc sulfate drying device, includes a screening section of thick bamboo, connects at air-drying pipe (2) of screening section of thick bamboo exit end and connects fan (3) not held at air-drying pipe, wherein:

screening section of thick bamboo include barrel (1) and lower dust bag (4), wherein: a feed inlet (9) is formed in the top of the upper barrel (1), a discharge outlet (10) is formed in one side of the upper barrel (1) and is connected with the air drying pipe (2), a screen (5) extending from the lower portion of the feed inlet (9) to the discharge outlet (10) is arranged in the upper barrel (1), and a vibration pump (6) is arranged on the screen (5);

the air drying pipe (2) is a spiral heating pipe.

2. The zinc sulfate drying device as defined in claim 1, wherein the screen (5) has an inclined plate with an inclination angle of 5-15 degrees at the front end and a flat plate horizontal to the discharge port at the rear end.

3. The zinc sulfate drying device as defined in claim 1 or 2, characterized in that the air-drying pipe (2) is a spiral pipe which is consistent with the horizontal direction of the discharge port (10) of the screening cylinder, the air-drying pipe (2) is a coaxial double-layer pipe, the inner layer is a crystal channel (7), and the outer layer is a heat source channel (8).

4. The zinc sulfate drying device as claimed in claim 3, characterized in that a heating pipe (8-1) is arranged in the heat source channel (8) or a heat medium is connected.

5. The zinc sulfate drying device as defined in claim 1, characterized in that the lower dust collecting bag (4) is replaceably mounted at the bottom end of the upper cylinder (1).

6. The zinc sulfate drying device according to claim 1, characterized in that the feed inlet (9) and the discharge outlet (10) are provided with control valves.