CN210801778U - Crushing device for spin flash dryer - Google Patents

Abstract

The utility model discloses a reducing mechanism for spin flash dryer, including organism and reducing mechanism body, the organism left end is provided with the feed inlet, the organism bottom is provided with dry barrel, dry barrel is located the feed inlet below, dry barrel right-hand member is provided with the air inlet, the reducing mechanism body is installed in the organism bottom, the reducing mechanism body includes the main shaft, the main shaft bottom is provided with actuating mechanism, inside the top of main shaft extended to the organism, the main shaft is located the inside part periphery of organism and installs a plurality of evenly distributed's crushing blade, the part periphery that the main shaft is located the organism below installs a plurality of evenly distributed's support bearing, the support bearing periphery is provided with cooling body, the utility model discloses strengthened crushing effect, crushing effectual to the material, can effectively avoid material jam, wind channel, Leakage from the shaft end, etc.

Description

Crushing device for spin flash dryer

Technical Field

The utility model relates to a flash drying equipment technical field specifically is a rotary flash drying machine is with reducing mechanism.

Background

Flashing is the phenomenon whereby saturated liquid at high pressure, after entering a vessel at a relatively low pressure, becomes a portion of the saturated vapor and liquid at the vessel pressure due to the sudden drop in pressure. The flash evaporation dryer is a novel continuous drying device integrating drying, crushing and screening, and is particularly suitable for drying cake-shaped, paste-shaped and slurry-shaped materials. The drying time of the wet material in the drying tower is only 5-8 seconds, the moisture is evaporated instantly, and the quality of the dried product has a great relationship with the drying temperature, the drying wind speed, the drying wind quantity and the crushing speed. The hot-air gets into the annular space of drying chamber bottom with tangential direction by the inlet tube to the heliciform rises, and simultaneously, the material is added in the tower by the charging means ration to carry out abundant heat exchange with the hot-air, great more wet material is by mechanical breakage under the agitator effect, the lower and less material of granularity of moisture content rises along with rotatory air current in the lump, carries to the separator and carries out gas-solid separation, and the finished product is collected the packing, and tail gas is then the evacuation after dust collector handles. However, the blade rotating speed of a crushing device in the existing flash dryer is too high, and the crushing strength is insufficient, so that equipment is blocked; a bearing in the crushing device is cooled by a circulating oil pump, so that lubricating oil is easy to leak; the total height of the blades of the crushing device is lower, so that the yield of equipment is low, and the air channel at the bottom is easy to block; the powder leakage phenomenon easily appears in desiccator axle head lower part, and serious condition can lead to the axle card to die.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rotary flash drying machine reducing mechanism to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a reducing mechanism for spin flash dryer, includes organism and reducing mechanism body, the organism left end is provided with the feed inlet, the organism bottom is provided with dry barrel, dry barrel is located the feed inlet below, dry barrel right-hand member is provided with first air inlet, the reducing mechanism body is installed in the organism bottom, the reducing mechanism body includes the main shaft, the main shaft bottom is provided with actuating mechanism, inside the top of main shaft extends to the organism, the main shaft is located the inside part periphery of organism and installs a plurality of evenly distributed's crushing blade, a plurality of evenly distributed's support bearing is installed to the part periphery that the main shaft is located the organism below, the support bearing periphery is provided with cooling body, the cooling body top is provided with sealing mechanism.

Preferably, the driving mechanism comprises a motor, the output end of the motor is connected with a speed reducer through belt transmission, and the output end of the speed reducer is fixedly connected with the main shaft through a coupler.

Preferably, the cooling mechanism comprises a water cooling jacket, the water cooling jacket is sleeved on the periphery of the support bearing, a cooling water inlet and a cooling water outlet are arranged on the water cooling jacket, and the cooling water inlet and the cooling water outlet are both connected with an external cooling water source.

Preferably, the fixed plate is installed through a plurality of bolts to the organism bottom, the fixed plate is located the cooling body top, be provided with the axle sleeve between fixed plate top and the organism bottom, the axle sleeve suit is in the main shaft periphery.

Preferably, a sealed cavity is formed between the main shaft and the shaft sleeve, a second air inlet communicated with the sealed cavity is formed in the shaft sleeve, and the second air inlet is connected with an external compressed air source.

Preferably, the total height of the plurality of sets of crushing blades exceeds 1200 mm.

Compared with the prior art, the beneficial effects of the utility model are that: by reducing the rotating speed of the main shaft, the crushing effect is improved, and the problem that the product sinks to block the air duct due to insufficient crushing strength of the original mechanism is solved; the cooling of the circulating oil is changed into the cooling of a water jacket, so that the problem of lubricating oil leakage is avoided; the total height of the crushing blades is increased, the crushing capacity is enhanced, and the materials are crushed into fine powder which can be blown by airflow above the crushing blades at the lowest side; the joint of the main shaft and the machine body is sealed by adopting high-pressure compressed air, so that fine powder is prevented from falling into a gap at the joint of the main shaft and the shaft sleeve. The utility model discloses strengthened crushing effect, it is effectual to the crushing of material, can effectively avoid the material to block up the wind channel, leak the scheduling problem from the axle end.

Drawings

FIG. 1 is a schematic view of a pulverizing apparatus for a spin flash dryer;

fig. 2 is an enlarged view of a point a in fig. 1.

In the figure: 1-machine body, 2-feed inlet, 3-drying cylinder, 4-first air inlet, 5-motor, 6-belt, 7-speed reducer, 8-coupler, 9-main shaft, 10-crushing blade, 11-supporting bearing, 12-water cooling jacket, 13-cooling water inlet, 14-cooling water outlet, 15-bolt, 16-fixing plate, 17-shaft sleeve, 18-sealing cavity and 19-second air inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a crushing device for a spin flash dryer comprises a machine body 1 and a crushing device body, wherein a feeding hole 2 is arranged at the left end of the machine body 1, the bottom end of the machine body 1 is provided with a drying cylinder body 3, the drying cylinder body 3 is positioned below the feed inlet 2, the right end of the drying cylinder 3 is provided with a first air inlet 4, the crushing device body is arranged at the bottom end of the machine body 1, the crushing device body comprises a main shaft 9, a driving mechanism is arranged at the bottom end of the main shaft 9, the top end of the main shaft 9 extends into the machine body 1, a plurality of uniformly distributed crushing blades 10 are arranged on the periphery of the part of the main shaft 9 positioned in the machine body 1, a plurality of evenly distributed supporting bearings 11 are arranged on the periphery of the part of the main shaft 9 positioned below the machine body 1, the periphery of the support bearing 11 is provided with a cooling mechanism, and a sealing mechanism is arranged above the cooling mechanism.

Actuating mechanism includes motor 5, motor 5's output is connected with reduction gear 7 through belt 6 transmission, coupling 8 and main shaft 9 fixed connection are passed through to reduction gear 7 transmission through addding to the output of reduction gear 7, reduce main shaft 9 rotational speed to 300rpm under, guarantee to smash blade 10 and can transversely cut with the powder product in the organism 1, strengthen crushing effect.

The cooling mechanism comprises a water cooling jacket 12, the water cooling jacket 12 is sleeved on the periphery of the support bearing 11, a cooling water inlet 13 and a cooling water outlet 14 are arranged on the water cooling jacket 12, the cooling water inlet 13 and the cooling water outlet 14 are both connected with an external cooling water source, the main shaft 9 and the support bearing 11 are cooled through the water cooling jacket 12, the temperature of the support bearing 11 is guaranteed to be lower than 100 ℃, and the safe operation of the support bearing 11 is guaranteed.

A fixing plate 16 is installed at the bottom end of the machine body 1 through a plurality of bolts 15, the fixing plate 16 is located above the cooling mechanism, a shaft sleeve 17 is arranged between the top end of the fixing plate 16 and the bottom end of the machine body 1, and the shaft sleeve 17 is sleeved on the periphery of the main shaft 9.

A sealed cavity 18 is formed between the main shaft 9 and the shaft sleeve 17, a second air inlet 19 communicated with the sealed cavity 18 is formed in the shaft sleeve 17, the second air inlet 19 is connected with an external compressed air source, compressed air is introduced into the sealed cavity 18, the high pressure in the sealed cavity 18 is ensured, and the sealing effect is achieved.

The total height of the multiple groups of crushing blades 10 exceeds 1200mm, the total height of the crushing blades 10 is high enough, and the materials are guaranteed to be continuously crushed in the descending process, so that the materials are crushed to a small degree enough to be blown by hot air flow before falling to the lowermost crushing blades 10, the materials are prevented from falling into a bottom air channel, and the phenomenon of air channel blockage is prevented.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a reducing mechanism for spin flash dryer, includes organism (1) and reducing mechanism body, its characterized in that: a feed inlet (2) is arranged at the left end of the machine body (1), a drying cylinder body (3) is arranged at the bottom end of the machine body (1), the drying cylinder body (3) is positioned below the feeding hole (2), a first air inlet (4) is arranged at the right end of the drying cylinder body (3), the crushing device body is arranged at the bottom end of the machine body (1), the crushing device body comprises a main shaft (9), the bottom end of the main shaft (9) is provided with a driving mechanism, the top end of the main shaft (9) extends into the machine body (1), a plurality of uniformly distributed crushing blades (10) are arranged on the periphery of the part of the main shaft (9) positioned in the machine body (1), a plurality of evenly distributed supporting bearings (11) are arranged on the periphery of the part of the main shaft (9) which is positioned below the machine body (1), the periphery of the supporting bearing (11) is provided with a cooling mechanism, and a sealing mechanism is arranged above the cooling mechanism.

2. The pulverizer for a spin flash dryer of claim 1, wherein: the driving mechanism comprises a motor (5), the output end of the motor (5) is connected with a speed reducer (7) through a belt (6) in a transmission mode, and the output end of the speed reducer (7) is fixedly connected with a main shaft (9) through a coupler (8).

3. The pulverizer for a spin flash dryer of claim 1, wherein: the cooling mechanism comprises a water cooling jacket (12), the water cooling jacket (12) is sleeved on the periphery of the support bearing (11), a cooling water inlet (13) and a cooling water outlet (14) are arranged on the water cooling jacket (12), and the cooling water inlet (13) and the cooling water outlet (14) are both connected with an external cooling water source.

4. The pulverizer for a spin flash dryer of claim 1, wherein: fixed plate (16) are installed through a plurality of bolts (15) to organism (1) bottom, fixed plate (16) are located the cooling body top, be provided with axle sleeve (17) between fixed plate (16) top and organism (1) bottom, axle sleeve (17) suit is in main shaft (9) periphery.

5. The pulverizer for a spin flash dryer of claim 4, wherein: a sealing cavity (18) is formed between the main shaft (9) and the shaft sleeve (17), a second air inlet (19) communicated with the sealing cavity (18) is formed in the shaft sleeve (17), and the second air inlet (19) is connected with an external compressed air source.

6. The pulverizer for a spin flash dryer of claim 1, wherein: the total height of the plurality of sets of crushing blades (10) exceeds 1200 mm.

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