CN210229158U - Dye drying system - Google Patents

Abstract

The utility model discloses a dye drying system, which comprises a slurry filter, a material pump and a drying tower, wherein a buffer settling tank is arranged between the slurry filter and the drying tower, and the material pump is arranged between the slurry filter and the buffer settling tank; the buffer precipitation tank is provided with a feeding port connected with the drying tower, a feeding port connected with the material pump and a drain outlet for draining water, the feeding port is arranged at the bottom of the buffer precipitation tank, the drain outlet is arranged at the top of the buffer precipitation tank, the feeding port is positioned between the feeding port and the drain outlet, and the drain outlet is provided with a drain valve. Buffering is carried out through the setting of buffering precipitation tank for dyestuff thick liquids get into buffering precipitation tank earlier and deposit, then lie in its bottom thick liquids after the sediment and send into the drying tower, and after using a period, open the blowoff valve, discharge the sewage on upper strata in order to ensure to get into the concentration of giving thick liquids in the drying tower, thereby make thick liquids have better drying effect in the drying tower.

Description

Dye drying system

Technical Field

The utility model relates to a dyestuff processing equipment technical field, in particular to dyestuff drying system.

Background

The drying of the dye is the last procedure in the dye production process and is also an important link in the aspect of dye post-treatment processing. There are many methods for drying dye filter cakes or dye liquors, and different types of dyes, even different types of dyes in the same type, are often dried by different drying methods. The direct drying method, the belt drying method, the rake drying method, the spin flash drying method, the spray drying method, the air flow drying method, the microwave drying method and the like are commonly adopted.

Chinese patent No. CN206366204U, filed 2016, 12, and 21 discloses a dye drying system capable of automatically adjusting negative pressure, which is characterized in that slurry is filtered and then sent into a drying tower to be dried to obtain a product, and simultaneously, discharged air is screened by a cyclone separator to separate the product from the air for recycling, so that the product can be obtained more sufficiently.

Then, because the above patent directly sends the slurry into the drying tower, so can make the slurry that gets into the drying tower moisture more, thereby make and need more air to carry over moisture out, therefore, it either needs the air that lets in pressure intensity higher or quickens the velocity of flow of sending into the air, so also leads to more dust dyestuff to be carried over, though set up cyclone to retrieve, still leads to the dyestuff to produce more losses after carrying out the drying.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dyestuff drying system has the advantage that reduces dyestuff loss among the drying process.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a dye drying system comprises a slurry filter, a material pump and a drying tower, wherein a buffer settling tank is arranged between the slurry filter and the drying tower, and the material pump is arranged between the slurry filter and the buffer settling tank;

the buffer precipitation tank is provided with a feeding port connected with the drying tower, a feeding port connected with the material pump and a drain outlet for draining water, the feeding port is arranged at the bottom of the buffer precipitation tank, the drain outlet is arranged at the top of the buffer precipitation tank, the feeding port is positioned between the feeding port and the drain outlet, and the drain outlet is provided with a drain valve.

So set up, cushion through the setting of buffering precipitation tank for dyestuff thick liquids get into buffering precipitation tank earlier and deposit, then lie in its bottom thick liquids after the sediment and send into the drying tower, and after using a period, open the blowoff valve, discharge the sewage on upper strata in order to ensure to get into the concentration of giving thick liquids in the drying tower, thereby make thick liquids have better drying effect in the drying tower.

More preferably: the top of the drying tower is provided with a hot gas inlet which is connected with a gas hot blast stove; and the bottom of the drying tower is provided with an air feeding port and a discharge port.

So set up, the gas hot-blast furnace heats the back to the air and sends into the steam import in, heats the drying to thick liquids in the drying tower.

More preferably: and an air outlet is formed in the middle-lower part of the drying tower and connected with a cyclone separator, and an outlet at the bottom of the cyclone separator is connected with a discharge hole.

So set up, sieve the exhaust air through cyclone, isolate the product in the air and carry out recovery processing.

More preferably: the gas outlet at the top of the cyclone separator is connected with a bag-type dust collector, and the bottom of the bag-type dust collector is provided with a product outlet.

According to the arrangement, on the basis of the cyclone separator, the bag-type dust collector is used for further separation and recovery.

More preferably: the gas outlet of the bag-type dust collector is connected with a wet dust collector, a circulating pipeline is arranged on the bag-type dust collector, and a circulating water pump is arranged on the circulating pipeline.

So set up, the air sprays the processing before discharging, and the dust that does not filter in with the air all melts into the aquatic, and circulating line can be continuous circulates wet dust collector internal water to all retrieve the aquatic with most of remaining dust in the air, can dry it once more as thick liquids when aquatic dyestuff concentration reaches certain numerical value.

More preferably: and a waste heat recoverer is arranged between the bag-type dust collector and the wet-type dust collector and is arranged in the air inlet pipe of the gas hot blast stove for connection.

So set up, carry out recycle to the waste heat in the exhaust air, reduce the energy consumption of gas hot-blast furnace.

More preferably: the discharge gate is provided with a discharging pipe, dyestuff drying system is still including dustproof agent jar, dustproof agent jar is connected with the discharging pipe.

So set up, the product is ejection of compact process in the discharging pipe, reduces the dust in the product through the dust keeper that lets in to avoid appearing a large amount of dusts in ejection of compact in-process and float to the air, with this reduction to workman's health influence.

More preferably: the dye drying system also comprises an electric heater and a back-blowing fan, and the back-blowing fan is connected with the discharge pipe; the electric heater is connected with the discharge pipe through a material return pipe, an air inlet of the electric heater is connected with the back-blowing fan, and an outlet of the cyclone separator is connected with the material return pipe.

So set up, at first, the blowback fan can carry out cooling treatment to product in the discharging pipe, simultaneously, also can send the dust in the separation back to the discharging pipe in with cyclone through the blowback fan, at the in-process of sending back, heats the drying through electric heater to the air earlier.

To sum up, the utility model discloses following beneficial effect has:

1. the concentration of the slurry fed into the drying tower is increased by arranging the buffer settling tank, so that the loss of the dye in the drying process is reduced;

2. and multi-stage separation and recovery are arranged, so that the dye in the discharged air is fully recovered.

Drawings

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

In the figure, 100, a slurry filter; 110. a material pump; 200. a buffer settling tank; 300. a drying tower; 310. a hot gas inlet; 320. an air supply port; 330. an air outlet; 340. a discharge port; 350. a discharge pipe; 360. a dust-proofing agent tank; 370. a dust blower; 400. a gas hot-blast stove; 410. a waste heat recoverer; 500. a cyclone separator; 600. a bag-type dust collector; 610. a product outlet; 700. a wet dust collector; 710. a water circulating pump; 800. an electric heater; 810. a material return pipe; 900. a back-blowing fan; 910. and (7) cooling the tube.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A dye drying system is shown in figure 1 and comprises a slurry filter 100, a buffer precipitation tank 200, a drying tower 300, a gas hot blast stove 400, a cyclone separator 500, a bag-type dust collector 600, an electric heater 800, a wet dust collector 700 and a dust-proof agent tank 360.

Be provided with pay-off mouth, feed inlet and drain on the buffering precipitation tank 200, the bottom of buffering precipitation tank 200 is located to the pay-off mouth, and the top of buffering precipitation tank 200 is located to the drain, and the feed inlet place height is located between pay-off mouth and the drain, is provided with the blowoff valve on the pipeline that the drain is connected.

The slurry filter 100 is connected to the feed port through a pipe, and a material pump 110 is provided on the pipe connecting the slurry filter 100 and the buffer settling tank 200.

The drying tower 300 is connected with a feeding port through a pipeline, and dye slurry is fed from the feeding port to the top of the drying tower 300. The drying tower 300 is provided with a hot gas inlet 310, an air feed port 320, an air outlet 330 and a discharge port 340, the hot gas inlet 310 is positioned at the top of the drying tower 300 and is aligned, and the hot gas inlet 310 is connected with a gas hot blast stove 400. The air inlet 320 and the outlet 340 are provided at the bottom of the drying tower 300, and compressed air is introduced into the drying tower 300 from the air inlet 320.

The air outlet 330 is located at the middle-lower part of the drying tower 300, the air outlet 330 is connected with the cyclone separator 500, the air outlet 330 at the top of the cyclone separator 500 is connected with the bag-type dust collector 600, and the bottom of the bag-type dust collector 600 is provided with a product outlet 610. The discharge pipe 350 is connected to the discharge port 340 of the drying tower 300, the electric heater 800 is connected to the discharge pipe 350 through a return pipe 810, and the outlet at the bottom of the cyclone separator 500 is connected to the return pipe 810.

The air inlet of the electric heater 800 is connected with a back-blowing fan 900, and air is supplied to the electric heater 800 and the feed back pipe 810 through the back-blowing fan 900. In addition, a cooling pipe 910 is disposed between the blowback fan 900 and the discharge pipe 350, the cooling pipe 910 is disposed in parallel with the return pipe 810, and valves are disposed on both the cooling pipe 910 and the return pipe 810.

The air outlet 330 of the bag-type dust collector 600 is connected with a wet dust collector 700, the bottom of the bag-type dust collector 600 is provided with a product outlet 610, and a dust product is sent out from the product outlet 610 after being collected. The bag-type dust collector 600 is provided with a circulating pipeline, the circulating pipeline is provided with a circulating water pump 710, and water at the bottom of the wet-type dust collector 700 is conveyed to the top through the circulating pipeline to form spraying.

A waste heat recoverer 410 is arranged on a pipeline between the bag-type dust collector 600 and the wet dust collector 700, and the waste heat recoverer 410 is arranged in the air inlet pipe connection of the gas hot blast stove 400.

The dustproof agent tank 360 is connected with the discharge pipe 350 through a pipeline, and a dustproof fan is arranged on the pipeline between the dustproof agent tank 360 and the discharge pipe 350.

The working principle is as follows: the dye slurry is fed to the slurry filter 100 for filtration, and then fed to the buffer settling tank 200 by the material pump 110, and then fed to the drying tower 300 from the feed port after the slurry is settled in the buffer settling tank 200. Wherein, after a period of use, the sewage at the upper part of the buffer settling tank 200 is discharged by opening the sewage discharge valve.

In the falling process of the slurry in the drying tower 300, the slurry is dried by air heated by the gas hot-blast stove 400, water vapor is brought out through the air supply port 320 by compressed air fed in the air supply port 320, and dried powder enters the discharge pipe 350 from the discharge port 340 and is condensed and sent out by the dustproof agent fed into the discharge pipe 350 through the dustproof agent tank 360.

After the air sent from the air outlet 330 is separated by the cyclone separator 500, the air is sent into the bag-type dust collector 600 again, and the separated powder is sent into the material return pipe 810 and sent back into the material discharge pipe 350 through the back blower 900. After the air is further filtered and separated in the bag-type dust collector 600, the air passes through the waste heat recoverer 410 and is sent to the wet dust collector 700, the separated product in the bag-type dust collector 600 is directly collected, and the waste heat recoverer 410 recovers heat in the air and heats the air entering the gas hot blast stove 400.

The air is sprayed by the wet scrubber 700 and discharged to the atmosphere, and the dust in the air is melted into water and finally collected in the wet scrubber 700.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws within the scope of the present invention.

Claims (8)

1. A dye drying system comprising a pulp filter (100), a material pump (110) and a drying tower (300), characterized in that: a buffer settling tank (200) is arranged between the slurry filter (100) and the drying tower (300), and the material pump (110) is arranged between the slurry filter (100) and the buffer settling tank (200);

the buffer precipitation tank (200) is provided with a feeding port connected with the drying tower (300), a feeding port connected with the material pump (110) and a drain outlet for draining water, the feeding port is arranged at the bottom of the buffer precipitation tank (200), the drain outlet is arranged at the top of the buffer precipitation tank (200), the feeding port is highly positioned between the feeding port and the drain outlet, and the drain outlet is provided with a drain valve.

2. The dye drying system of claim 1, wherein: the top of the drying tower (300) is provided with a hot gas inlet (310), and the hot gas inlet (310) is connected with a gas hot blast stove (400); the bottom of the drying tower (300) is provided with an air feeding port (320) and a discharge port (340).

3. The dye drying system of claim 2, wherein: an air outlet (330) is formed in the middle-lower portion of the drying tower (300), the air outlet (330) is connected with the cyclone separator (500), and an outlet in the bottom of the cyclone separator (500) is connected with the discharge hole (340).

4. A dye drying system as claimed in claim 3, wherein: an air outlet (330) at the top of the cyclone separator (500) is connected with a bag-type dust collector (600), and a product outlet (610) is arranged at the bottom of the bag-type dust collector (600).

5. The dye drying system of claim 4, wherein: the gas outlet (330) of the bag-type dust collector (600) is connected with a wet dust collector (700), a circulating pipeline is arranged on the bag-type dust collector (600), and a circulating water pump (710) is arranged on the circulating pipeline.

6. The dye drying system of claim 5, wherein: a waste heat recoverer (410) is arranged between the bag-type dust collector (600) and the wet-type dust collector (700), and the waste heat recoverer (410) is arranged in an air inlet pipe connection of the gas hot blast stove (400).

7. A dye drying system as claimed in claim 3, wherein: discharge gate (340) are provided with a discharging pipe (350), dyestuff drying system is still including dustproof agent jar (360), dustproof agent jar (360) are connected with discharging pipe (350).

8. The dye drying system of claim 7, wherein: the dye drying system also comprises an electric heater (800) and a back-blowing fan (900), wherein the back-blowing fan (900) is connected with the discharge pipe (350); the electric heater (800) is connected with the discharge pipe (350) through a return pipe (810), an air inlet of the electric heater (800) is connected with the back blowing fan (900), and an outlet of the cyclone separator (500) is connected with the return pipe (810).

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