CN210921965U

CN210921965U - Fluidized bed drying device with stirring function

Info

Publication number: CN210921965U
Application number: CN201921610866.9U
Authority: CN
Inventors: 牛聚强
Original assignee: Yichang Dongsheng Phosphate Compound Fertilizer Co ltd
Current assignee: Yichang Dongsheng Phosphate Compound Fertilizer Co ltd
Priority date: 2019-09-26
Filing date: 2019-09-26
Publication date: 2020-07-03
Anticipated expiration: 2029-09-26

Abstract

The utility model discloses a fluidized bed drying device with stirring function relates to chemical industry technical field. Including the fluidized bed room, be located the tail gas pipe at its top and the hot-blast main and the cold-blast main of bottom, hot-blast main and cold-blast main top be equipped with fluidized bed room inner wall fixed connection's first air distribution plate, first air distribution plate middle part is rotated through the bearing and is connected with first puddler, first puddler passes the bottom of fluidized bed is rotated through the bearing and is installed in one of them hot-blast main, and first puddler is driven by actuating mechanism and is rotated, and the inside cavity of first puddler sets up, the bottom with the hot-blast main is linked together, and the intercommunication has a plurality of inside hollow first stirring vane on the first puddler, first stirring vane other end fixedly connected with second air distribution plate. The utility model discloses a fluidized bed drying device drying efficiency is higher, can fully guarantee dry completely.

Description

Fluidized bed drying device with stirring function

Technical Field

The utility model relates to a chemical production technical field, concretely relates to fluidized bed drying device with stirring function.

Background

The fluidized bed dryer is a large class of traditional drying equipment, is widely applied to industries such as chemical industry, petroleum, feed and the like, and is suitable for drying various granular, flaky and other materials and thermosensitive materials. Fluidized bed dryers are also commonly used drying equipment in the production of ammonium phosphate. At present, the more fluidized bed dryers adopted in China are in the structural form of a rectangular box-type fluidized bed, a porous air distribution plate is arranged at the bottom of the rectangular box-type fluidized bed, and preheated air or various boiler waste gases are introduced from the lower part of a box-type container, so that material particles in the fluidized bed are blown up to be suspended and crushed in a boiling state.

Chinese patent with application number cn201822128934.x discloses a dry fluidized bed of monoammonium phosphate, including fluidized bed body, fluidized bed body one end is connected with the discharge gate, and fluidized bed body's the other end is connected with the feed inlet, and the one end of feed inlet is connected with the inlet pipe, and fluidized bed body's lower extreme is connected with the intake pipe, and the one end of intake pipe is connected with the air-blower, and fluidized bed body's upper end is connected with the outlet duct, installs cleaning device in the outlet duct, and the one end of outlet duct is connected with cyclone. The method mainly cleans dust deposited in the air outlet pipe through the cleaning device, prevents the dust from being excessively deposited and influencing the working efficiency, adopts a drying method which is still the traditional fluidized bed drying method, and easily blocks ammonium phosphate under the condition of higher water content, so that the traditional fluidized bed drying device is easy to cause low drying efficiency and incomplete drying.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of fluidized bed drying device with stirring function aims at solving the problem that exists among the above-mentioned background art.

In order to realize the technical purpose, the utility model provides a following technical scheme:

a fluidized bed drying device with a stirring function comprises a fluidized bed chamber, wherein the top of the fluidized bed chamber is fixedly connected with a tail gas pipe, the bottom of the fluidized bed chamber is fixedly connected with a plurality of hot air pipes and a plurality of cold air pipes, the hot air pipes are distributed in the front part of the fluidized bed chamber close to a feed inlet, the cold air pipes are distributed in the rear part of the fluidized bed chamber close to a discharge port, a first air distribution plate fixedly connected with the inner wall of the fluidized bed chamber is arranged above the hot air pipes and the cold air pipes, the middle part of the first air distribution plate is rotatably connected with a first stirring rod through a bearing, the first stirring rod penetrates through the bottom of the fluidized bed and is rotatably arranged in one of the hot air pipes through the bearing, the first stirring rod is driven to rotate by a driving mechanism, the inside of the first stirring rod is hollow, the bottom of the first stirring rod is communicated with the hot air pipes, and, and the other end of the first stirring blade is fixedly connected with a second air distribution plate.

Preferably, the hot air pipe is fixedly connected with the outlet end of the air heater, the cold air pipe is fixedly connected with the outlet end of the air cooler, the inlet end of the air heater and the inlet end of the air cooler are fixedly connected with the outlet end of the air blower through a three-way pipe, and the inlet end of the air blower is covered with a stainless steel filter screen.

Wherein, the bracing piece that the inside cavity that still fixed intercommunication installed slope decurrent on the first puddler set up, the horizontally mounting panel that inside cavity set up is installed to bracing piece bottom fixed intercommunication, the second puddler is installed through the bearing rotation in the mounting panel inside, second puddler bottom with the mounting panel is inside to be linked together, and fixed intercommunication installs the second stirring vane that inside cavity set up on the second puddler, second stirring vane other end fixed mounting has the third air distribution board.

Furthermore, the support rod uses first puddler as the top center, is conical evenly distributed on first puddler.

As a preferred embodiment of the present invention, the number of the support rods is set to 3.

The utility model discloses in, fixed mounting has the action wheel on the first puddler, the action wheel meshing is provided with from the driving wheel, second puddler fixed mounting be in from the epaxial of wheel.

In addition, drive arrangement is including fixed mounting in the motor of fluidized bed chamber lateral wall, there is first bevel gear through speed reducer fixed mounting on the output shaft of first motor, first bevel gear meshing is provided with the second bevel gear, the second bevel gear with first puddler key-type connection.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the first stirring rod and the first stirring blade are arranged in a hollow manner and are communicated with the hot air pipe, so that hot air flow can be uniformly dispersed into the fluidized bed chamber, and ammonium phosphate particles can be uniformly heated;

(2) first puddler passes through its rotation of drive arrangement control, and first stirring vane can not only play the effect of homodisperse hot gas flow, can stir the ammonium phosphate granule simultaneously, and in the stirring, also probably break up the ammonium phosphate that bonds the blocking, further increases the homogeneity that the ammonium phosphate granule is heated, improves drying effect.

Drawings

FIG. 1: the structure of the utility model is shown schematically;

FIG. 2: the utility model is a top view of the connection relationship between the middle support rod and the mounting plate and the first stirring rod;

FIG. 3: the utility model discloses in the connection structure sketch map between first puddler and the second puddler.

Detailed Description

The invention will be further explained with reference to the following examples.

As shown in fig. 1, a fluidized bed drying device with stirring function includes a fluidized bed chamber 1, a feeding port 2 is disposed on the left side of the fluidized bed chamber 1, a discharging port 3 is disposed on the right side of the fluidized bed chamber 1, a tail gas pipe 2 is fixedly connected to the top of the fluidized bed chamber 1, and a plurality of hot air pipes 3 and cold air pipes 4 are fixedly connected to the bottom of the fluidized bed chamber 1, wherein the hot air pipes 3 are distributed on the front portion of the fluidized bed chamber 1 near the feeding port 5, the cold air pipes 4 are distributed on the rear portion of the fluidized bed chamber 1 near the discharging port 6, the hot air pipes 3 are fixedly connected to the outlet end of an air heater 11, the cold air pipes 4 are fixedly connected to the outlet end of an air cooler 12, the inlet end of the air heater 11 and the inlet end of the air cooler 12. The upper portions of the hot air pipe 3 and the cold air pipe 4 are provided with a first air distribution plate 7 fixedly connected with the inner wall of the fluidized bed chamber 1, the middle portion of the first air distribution plate 7 is connected with a first stirring rod 8 through a bearing in a rotating manner, the first stirring rod 8 penetrates through the bottom of the fluidized bed chamber 1 and is installed in one of the hot air pipes 3 through a bearing in a rotating manner, the hot air pipe 3 is preferably arranged at the middle position of the fluidized bed chamber 1, then the first stirring rod 8 is also arranged at the middle of the fluidized bed chamber 1, wherein the first stirring rod 8 is driven by a driving mechanism to rotate, the inside of the first stirring rod 8 is hollow, the bottom of the first stirring rod is communicated with the hot air pipe 3, the first stirring rod 8 is communicated with a plurality of hollow first stirring blades 9, and the other end of the first stirring blade 9 is fixedly connected with a second air distribution plate.

After the blower 14 is started, the blower 14 blows the filtered air into the air heater 11 and the air cooler 12 respectively to provide a heat source for the hot air pipe 3 and a cold source for the cold air pipe 4 respectively. Hot air in a part of hot-blast main 3 flows out of the first air distribution plate 7 to preheat materials, hot air in the hot-blast main 3 positioned at the middle position of the bottom of the fluidized bed chamber 1 enters the first stirring rod 8 and is dispersed into the first stirring blades 9 mutually communicated with the first stirring rod 8, hot air flows out of the second air distribution plate 10 to preheat materials, so that a material particle swarm is in a fluidized state, meanwhile, because the first stirring rod 8 is driven to rotate by a driving mechanism, the first stirring blades 9 can not only stir and disperse air positioned in the fluidized bed chamber 1, and simultaneously can disperse ammonium phosphate particles possibly agglomerated in the fluidized bed chamber 1, the uniformity of heating of the ammonium phosphate particles can be increased, and the drying effect is improved. The cold air in the cold air pipe 4 cools the material particles and finally flows out from the discharge hole 6. The dried air flows out from the exhaust pipe 2 and is recovered.

The utility model discloses in, go back fixed intercommunication and install the bracing piece 15 that the inside cavity that inclines down set up on first puddler 8, bracing piece 15 bottom fixed intercommunication installs the horizontally mounting panel 16 that inside cavity set up, and mounting panel 16 is inside to rotate through the bearing and install second puddler 17, and second puddler 17 bottom is linked together with mounting panel 16 is inside, and fixed intercommunication installs the second stirring vane 18 that inside cavity set up on

second puddler

17, 18 other end fixed mounting of second stirring vane has third air distribution plate 19.

Wherein, it is preferred with first puddler 8, first stirring vane 9, bracing piece 15, mounting panel 16 sets up the body structure that communicates each other, be favorable to the stability of structure, use first puddler 8 as house steward in other words, distribute the many branch pipes of intercommunication, disperse hot-air to first stirring vane 9, bracing piece 15 and the inside department of mounting panel 16, it is rotatory to drive first stirring vane 9 and second stirring vane 18 through first puddler 8 and the rotation of second puddler 17, further increase the homogeneity that the phosphorus ammonium granule is heated, drying effect is improved.

It should be noted that, the utility model provides a first grid plate 7, second grid plate 10 and third grid plate 19 structure are the same, all adopt the perforated plate, and its aperture of aperture is 0.5-1 millimeter, and the grid plate is close to one side fixed connection screen cloth of material, and the screen cloth adopts 100 mesh stainless steel metal mesh, can prevent effectively that the ammonium phosphate granule from entering into in hot-blast main, the cold-blast main or the stirring vane.

With continuing reference to fig. 1 and 2, as a further improvement of the present invention, the support rods 15 are uniformly distributed on the first stirring rod 8 in a conical shape with the first stirring rod 8 as a top center, and the number of the support rods 15 is preferably set to 3. The decurrent setting of bracing piece 15 slope can avoid the ammonium phosphate granule to remain on backup pad 15, make it fully fall down, effectively guarantee that the ammonium phosphate granule can fully contact hot-air, and simultaneously, preferably set up mounting panel 16 width to 1/20-1/40 of whole fluidized bed room 1 width, in the use, there is a small amount of part ammonium phosphate probably to exist on mounting panel 16, on the one hand, because the proportion of mounting panel 16 for fluidized bed 1 room is enough little, neglect easily, on the other hand, at mounting panel 16 along with first puddler 8 pivoted in-process, because of the effect of centrifugal force, the ammonium phosphate granule that probably remains on mounting panel 16 also can disperse to the outside, drop to on first grid 7.

Continuing to refer to fig. 1 and 3, in the present invention, the first stirring rod 8 is fixedly installed with a driving wheel 20, the driving wheel 20 is engaged with a driven wheel 21, and the second stirring rod 17 is fixedly installed on the wheel shaft of the driven wheel 21.

In addition, the above-mentioned drive device includes motor 22 fixedly mounted on the sidewall of fluidized bed chamber 1, and the output shaft of motor 22 is fixedly mounted with first bevel gear through speed reducer 23, and the first bevel gear is engaged with and is provided with the second bevel gear, and the second bevel gear is connected with the key of first puddler. Drive first puddler 8 through drive arrangement and rotate, first puddler 8 drives action wheel 20 and the revolution of mounting panel 16, and simultaneously, action wheel 20 can drive again when rotating from driving wheel 21 rotation, then can drive the stirring of second puddler 17 from driving wheel 21, realizes thermal homodisperse, guarantees the drying effect of phosphorus ammonium granule.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fluidized bed drying device with stirring function which characterized in that: comprises a fluidized bed chamber, the top of the fluidized bed chamber is fixedly connected with a tail gas pipe, the bottom of the fluidized bed chamber is fixedly connected with a plurality of hot air pipes and cold air pipes, the hot air pipes are distributed at the front part of the fluidized bed chamber close to the feed inlet, the cold air pipes are distributed at the rear part of the fluidized bed chamber close to the discharge outlet, a first air distribution plate fixedly connected with the inner wall of the fluidized bed chamber is arranged above the hot air pipe and the cold air pipe, the middle part of the first air distribution plate is rotationally connected with a first stirring rod through a bearing, the first stirring rod penetrates through the bottom of the fluidized bed and is rotationally arranged in one hot air pipe through the bearing, the first stirring rod is driven to rotate by a driving mechanism, and the first stirring rod is hollow, the bottom of the first stirring rod is communicated with the hot air pipe, the first stirring rod is communicated with a plurality of first stirring blades which are hollow inside, and the other ends of the first stirring blades are fixedly connected with a second air distribution plate.

2. The fluidized bed drying apparatus with stirring function according to claim 1, characterized in that: the hot air pipe is fixedly connected with the outlet end of the air heater, the cold air pipe is fixedly connected with the outlet end of the air cooler, the inlet end of the air heater and the inlet end of the air cooler are fixedly connected with the outlet end of the air blower through a three-way pipe, and the inlet end of the air blower is covered with a stainless steel filter screen.

3. The fluidized bed drying apparatus with stirring function according to claim 1, characterized in that: the utility model discloses a wind distribution plate, including first puddler, bracing piece bottom fixed intercommunication, second puddler other end fixed mounting has the third cloth tuber plate, the bracing piece that the inside cavity that inclines down set up is installed to last still fixed intercommunication of first puddler, the horizontally mounting panel that inside cavity set up is installed to bracing piece bottom fixed intercommunication, the mounting panel is inside to be rotated through the bearing and to install the second puddler, second puddler bottom with the mounting panel is inside to be linked together, and fixed intercommunication installs the second stirring vane that inside cavity set up on the second puddler.

4. The fluidized bed drying apparatus with stirring function according to claim 3, characterized in that: the bracing piece uses first puddler as the top center, is conical evenly distributed on first puddler.

5. The fluidized bed drying apparatus with stirring function according to claim 4, characterized in that: the number of the supporting rods is 3.

6. The fluidized-bed drying apparatus with stirring function according to any one of claims 3 to 5, characterized in that: the first stirring rod is fixedly provided with a driving wheel, the driving wheel is meshed with a driven wheel, and the second stirring rod is fixedly arranged on a wheel shaft of the driven wheel.

7. The fluidized bed drying apparatus with stirring function according to claim 1, characterized in that: the driving device comprises a motor fixedly installed on the side wall of the fluidized bed chamber, a first bevel gear is fixedly installed on an output shaft of the first motor through a speed reducer, a second bevel gear is arranged in meshing mode of the first bevel gear, and the second bevel gear is in key connection with the first stirring rod.