CN203629250U

CN203629250U - Spiral dryer

Info

Publication number: CN203629250U
Application number: CN201320677130.XU
Authority: CN
Inventors: 丁怡仁
Original assignee: Zhengzhou Xin Di Plant Equipment Co Ltd
Current assignee: Zhengzhou Xin Di Plant Equipment Co Ltd
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2014-06-04
Anticipated expiration: 2023-10-31

Abstract

The utility model discloses a spiral dryer. The spiral dryer comprises a driving mechanism, a support and a drying mechanism fixed to the support, wherein the drying mechanism at least comprises two layers of drying devices which are arranged horizontally, at least one or two drying cylinders which are arranged in parallel are arranged in a shell of each drying device, a feed inlet is formed in one end of each drying cylinder, a discharge outlet is formed in the other end of each drying cylinder, each drying cylinder comprises an inner cylinder body and an outer cylinder body, a sealed interlayer cavity is formed between each inner cylinder body and the corresponding outer cylinder body, spray holes are formed in inner wall base plates of the drying cylinders, a spiral propeller shaft is transversely arranged in each drying cylinder, helical blades are evenly installed on each spiral propeller shaft, and one end of each spiral propeller shaft is in transmission connection with the driving device through a transmission mechanism. According to the spiral dryer, hot air is centralized, loss of heat energy is small, the hot air can flow through gaps between materials fully and rapidly, the materials can be dried fully, and the drying speed is high.

Description

Screw dryer

Technical field

The utility model relates to dry materials field, is specifically related to a kind of drying plant for dry powdered material and fiberous material.

Background technology

At present, in dry materials field, especially agricultural mechanical field, in the time that the fiberous material such as agricultural crop straw, branch bark to granular materials such as some sawdusts, wood chips and after pulverizing is dry, the rotary drum drying machines that adopt more, this dryer is along with the rotation of rotating cylinder, material is easily docile and obedient at rotating cylinder inwall, and the heat that concentrates on rotating cylinder middle part just cannot be fully used, and the effective rate of utilization of heat is low, in rotating cylinder, heat free air space is large in addition, spread heat, can not concentrate heating to material, and heat transfer efficiency is low, dry materials speed is slow, dry yielding poorly.And material ratio is thicker in rotating cylinder, material internal layer is just difficult for absorbing heat, and drying efficiency is low, and the lack of homogeneity of dry materials, and moisture evaporation is insufficient, easily causes dry materials not thorough.For concerning dries quantity requires all higher crops material, existing tumble drying equipment can not reach its dry requirement.

Summary of the invention

The purpose of this utility model is that the problem existing for prior art provides a kind of novel screw dryer, this dryer upwards overturns material when dry, in loose shape state, hot-fluid sprays in cylinder from drying bottom, hot-fluid blows rapidly material boiling, makes material aprowl reach drying effect.

The technical scheme in the invention for solving the technical problem is: a kind of screw dryer, comprise driving mechanism, support and be fixed on the drier on support, described drier at least comprises the drying device of two-layer horizontally set, in described every layer of drying device shell, the drying that one or two be arranged in parallel is at least set, each drying one end arranges charging aperture, the other end arranges discharging opening, the charging aperture of described lower floor drying is communicated with the discharging opening of upper strata drying, described each drying comprises inner core and urceolus, between inner core and urceolus, form the interlayer chamber of sealing, and at drying inwall base plate, spray-hole is set, so that interlayer chamber is communicated with drying inner core, the one end in described interlayer chamber connects air intake passage, after gathering, air intake passage is communicated with hot air blower structure, described drying inner core one end connects air-out passage, after gathering, described air-out passage is communicated with dedusting separating mechanism, equal spiral promoting shaft of horizontally set in described each drying, the uniform helical blade that is provided with on every spiral promoting shaft, described spiral promoting shaft one end is in transmission connection through transmission mechanism and drive unit.

Preferably, described hot air blower structure comprises a hot-blast stove, and hot-blast stove is communicated with interlayer chamber air inlet through air intake passage.

Preferably, described dedusting separating mechanism comprises cyclone dust collectors, and described drying inner core gas outlet is communicated with cyclone dust collectors input port through air-introduced machine one.

Preferably, between described drying inner core gas outlet and cyclone dust collectors, be also provided with air-introduced machine two.

Preferably, the drive unit of described spiral promoting shaft is buncher.

Preferably, described spray-hole is strip spray-hole.

Beneficial effect: the utility model is for the lack of homogeneity of traditional rotary drum drying machine spread heat, consume energy large and dry materials, the shortcomings such as moisture evaporation is insufficient, a kind of screw dryer that multilayer drying device is set is provided, easy to use, flexibly, can, according to the dry needs of different material, the different drying device numbers of plies be set, and can multiple dryings be set at every layer of drying device, improve dry materials efficiency.This patent is provided for transmitting the interlayer chamber of hot blast specially, makes hot-air more concentrated, and heat energy loss is few, and with respect to traditional rotary drum drying machine, efficiency of utilization is high.Owing to being provided with helical blade in drying, in dry run, material is upwards started by helical blade, material is thin in dispersity, the bed of material, hot blast from interlayer chamber from bottom to top in the time that spray-hole sprays into inner core, the powerful hot-fluid material gap of fully flowing through rapidly forming, make material fully dry, the fast and material moisture under flow regime of rate of drying can fully evaporate, uniform drying.

Brief description of the drawings

Fig. 1 is screw dryer front view of the present utility model;

Fig. 2 is A-A profile of Fig. 1;

Fig. 3 is the utility model drying base arrangement enlarged drawing;

Fig. 4 is the structural representation of the utility model embodiment 2.

Number in the figure, 1 is charging aperture, and 2 is drying, and 2a is drying base plate, and 3 is spiral promoting shaft, and 4 is air intake passage, and 5 is air-introduced machine one; 6 is hot-blast stove, and 7 is buncher, and 8 is discharging opening, and 9 is air-out passage, and 10 is cyclone dust collectors; 11 is transmission device, and 12 is strip spray-hole, and 13 is interlayer chamber, and 14 is connected entrance, and 15 for air intake passage gathers structure, and 16 for air-out passage gathers structure, and 17 is air-introduced machine two.

Detailed description of the invention

Below in conjunction with specific embodiment, the utility model is described further.

Embodiment 1: referring to Fig. 1, a kind of screw dryer, comprise driving mechanism, support and be fixed on the drier on support, described drier comprises the drying device of three layers of horizontally set, referring to Fig. 2, in described every layer of drying device shell, comprise two dryings that be arranged in parallel 2, each drying 2 one end arrange charging aperture 1, and the other end arranges discharging opening 8.The discharging opening of described ground floor drying 2 is communicated with the charging aperture of second layer drying 2, and the discharging opening of described second layer drying 2 is communicated with the charging aperture of the 3rd layer of drying 2, and the discharging opening of described the 3rd layer of drying 2 is as the total outlet of material.

Spiral promoting shaft 3 of horizontally set in each drying in the present embodiment, the uniform helical blade that is provided with on every spiral promoting shaft 3, described spiral promoting shaft 3 one end are in transmission connection through transmission mechanism 11 and buncher 7; Buncher 7 can be according to dry materials needs, adjust coupling rotating speed.Referring to Fig. 3, described each drying comprises inner core and urceolus, forms the interlayer chamber 13 of sealing, and has multiple strip spray-holes 12 in drying inwall backplane, so that interlayer chamber is communicated with drying inner core between inner core and urceolus; Described strip spray-hole 12 can ensure that hot blast can enter rapidly inner core completely.The one end in described interlayer chamber connects air intake passage 4, and air intake passage 4 is communicated with hot-blast stove 6 air outlets through air-introduced machine 1.Described hot blast gathers after structure 15 gathers and enters respectively each drying inner core through air intake passage.Described drying inner core one end connects air-out passage, and hot blast is blown over an interior material and gathered after structure 16 gathers through air-out passage, is communicated with cyclone dust collectors 10 input ports, top.

The present embodiment operation principle is: material enters drying 2 inner core one end through the charging aperture of the superiors, the spiral promoting shaft 3 that is configured to helical arrangement stirs and the level that promotes is advanced by ground floor drying 2, fall into lower floor's drying 2 inner core one end at ground floor drying 2 other ends, stirred by spiral promoting shaft 3 and the level that promotes is advanced by second layer drying 2, fall into lower floor's drying 2 inner core one end at second layer drying 2 other ends, and so forth, until the discharging opening 8 arranging by last one deck drying 2 one end is discharged body.Meanwhile, in material progradation, the high-temperature flue gas that hot-blast stove 6 produces attracts through air-introduced machine 1, enter the interlayer chamber 13 of drying 2 by air intake passage 4, transfer heat to the inner core of drying 2, and the strip spray-hole 12 arranging by drying 2 inwall bottoms enters drying 2 inner cores, blowing the inner material being promoted by spiral promoting shaft 3 seethes with excitement, and take away the gas outlet on drying 2 sidewalls after the moisture on material surface and enter in cyclone dust collectors 10, remove after the dust carrying in air, enter in atmosphere together with steam.

Embodiment 2: another kind of screw dryer, referring to Fig. 4, the present embodiment content and embodiment 1 content are basic identical, and same section content no longer repeats, as different from Example 1: in the present embodiment, between drying inner core air outlet and cyclone dust collectors, be also provided with air-introduced machine 2 17.Air-introduced machine 2 17 is for discharging the steam in drying and waste gas in time, and with respect to natural air-out, dryer exhaust more rapidly, thoroughly.

Claims

1. a screw dryer, comprise driving mechanism, support and be fixed on the drier on support, described drier at least comprises the drying device of two-layer horizontally set, in described every layer of drying device shell, the drying that one or two be arranged in parallel is at least set, each drying one end arranges charging aperture, the other end arranges discharging opening, the charging aperture of described lower floor drying is communicated with the discharging opening of upper strata drying, described each drying comprises inner core and urceolus, between inner core and urceolus, form the interlayer chamber of sealing, and at drying inwall base plate, spray-hole is set, so that interlayer chamber is communicated with drying inner core, the one end in described interlayer chamber connects air intake passage, after gathering, air intake passage is communicated with hot air blower structure, described drying inner core one end connects air-out passage, after gathering, described air-out passage is communicated with dedusting separating mechanism, equal spiral promoting shaft of horizontally set in described each drying, the uniform helical blade that is provided with on every spiral promoting shaft, described spiral promoting shaft one end is in transmission connection through transmission mechanism and drive unit.

2. screw dryer according to claim 1, is characterized in that: described hot air blower structure comprises a hot-blast stove, and hot-blast stove is communicated with interlayer chamber air inlet through air-introduced machine one.

3. screw dryer according to claim 1, is characterized in that: described dedusting separating mechanism comprises cyclone dust collectors, and described drying inner core gas outlet is communicated with cyclone dust collectors input port through air-out passage.

4. screw dryer according to claim 3, is characterized in that: between described drying inner core gas outlet and cyclone dust collectors, be also provided with air-introduced machine two.

5. screw dryer according to claim 1, is characterized in that: the drive unit of described spiral promoting shaft is buncher.

6. according to the screw dryer described in claim 1-5 any one, it is characterized in that: described spray-hole is strip spray-hole.