CN1004075B - Method and equipment for drying standard gum - Google Patents
Method and equipment for drying standard gum Download PDFInfo
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- CN1004075B CN1004075B CN86102824.4A CN86102824A CN1004075B CN 1004075 B CN1004075 B CN 1004075B CN 86102824 A CN86102824 A CN 86102824A CN 1004075 B CN1004075 B CN 1004075B
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Abstract
The present invention relates to a method and an appliance for processing standard gum. In the method for processing standard gum, broken gum particles are uniformly laid on a drying chain belt in continuous operation by a feeding device according to limited gum layer thickness, the broken gum particles successively enter a drying tunnel and pass through four drying sections and one cooling section under rated drying temperature, drying wind quantity and drying time, rubber is dried, and the process of automatically discharging is carried out by a discharge device. The appliance for processing standard gum is the standard gum conveying belt continuous drying appliance composed of the drying tunnel, the single drying chain belt, a heat supply ventilation system, a cooling device, a chain belt driving device, a cleaning device, the feeding device, the discharge device and a transmission system.
Description
The invention belongs to a kind of new working method and the equipment of standard glue.
Document announcement from international rubber conference 1975 collection of thesis (" natural rubber processing part " translated by Huanan Tropical Crops Prods. processing Design Inst.): in the production process of standard glue, natural rubber in maximum produces glue state Malaysia, and the moisture eliminator of nearly all standard glue processing all adopts hot blast circulation deep layer exsiccant form.The production of China's standard glue is also used the deep layer drying means more, advances dry trunk to carry out drying off and in dolly.This method, because deep layer moisture eliminator mesogloea thicker (40-70 centimetre), bigger to the resistance to flow of warm air, so leak out or the heat supply deficiency bigger for the exsiccant influential effect, often in blob of viscose, produce when serious " half-cooked ", and be difficult for again checking out.This is a shortcoming of deep layer drying means.In addition, deep layer is dry to need 4-8 hour, because the inhomogeneous or warm air skewness of granulation, causes part rubber still long-time superheated and degrading after drying to be clamminess.Moreover, the dry gained of deep layer all be bulk glue, discharging, weighing and carrying operational difficulty are unfavorable for realizing that standard glue mechanize serialization produces.According to the Sai Kehaer 1970 of Malaysian natural rubber making booklets " be collected in industry has the working method of the new introduction of modern essential characteristic about natural rubber " (Sekhar, B.G., 1970:New Presentation Processes-An Essential Feature of Modernisation of the Nature Rubber Industry Collection of Famphlets for the Malaysia Nature Rubber Processes, (8): 8) document announcement, belt successive drying systematic testing is because the bad solution of problem such as conveying belt viscose glue, and do not succeed.
The objective of the invention is: in order to address the above problem, at characteristics such as easy bonding of natural rubber and poor heat stability, study the new drying means of a kind of standard glue and develop the equipment that is applicable to this method, or rather, develop standard glue continuous drier exactly, make and want the charging continuously of exsiccant rubber, drying and discharging,, realize producing from granulation, the standard glue serialization that is dried to packing with the supporting use of continuous packing machine.
Method of the present invention is: form broken micelle by known method through pressing crape, dehydration, granulation, water content is at the 28-38%(butt) between, micelle evenly is layered on the dry chain belt of continuous operation by feeding unit, enter dry trunk successively, through one, two, three, four dryer section and a cooling section, dry good product is by dumping device discharging continuously and automatically.
Bondline thickness on the dry chain belt has been taked qualification, can between 20-30 centimetre, be preferably between 25-28 centimetre.Dry trunk is divided into four dryer section and a cooling section, and the drying temperature of first dryer section can be preferably between 75-80 ℃ between 60-80 ℃, and dry air quantity can be between 2.2-2.6 cube of meter per second; Be preferably between the 2.4-2.5 cube of meter per second; The drying temperature of second dryer section can be preferably between 115-120 ℃ between 110-120 ℃, and dry air quantity can be preferably between the 3.6-3.7 cube of meter per second at 3.4-3.8 cube of meter per second; The drying temperature of the 3rd dryer section can be preferably between 120-125 ℃ between 115-125 ℃, and dry air quantity can be preferably between the 5.3-5.4 cube of meter per second between 5.1-5.5 cube of meter per second; The 4th drying temperature can be preferably between 100-105 ℃ between 95-105 ℃, and dry air quantity can be preferably between the 4.5-4.6 cube of meter per second at 4.3-4.7 cube of meter per second.The temperature of cooling section is below 60 ℃.The efficient drying time of micelle in trunk can be preferably between 2.3-2.5 hour between 2.0-2.8 hour.
Adopt aforesaid method, can receive beat all good drying effect, both shortened to 2.3-2.5 hour in 4-8 hour from the deep layer exsiccant time of drying with standard glue, reduced rubber and caused agglutinating danger because of local superheating causes oxidative degradation, can check and reject " half-cooked glue " again easily, thereby guarantee the quality of product.Dried product colour is pale yellow, comfortable parching, and physicochemical property is good, meets the quality standard of homemade primary standard glue, also the quality standard of No. 5 glue of conformance with standard glue.It is worthy of note especially, the water content of broken micelle can be at the 28-38%(butt during charging) between, be preferably between the 34-36%, this is (water content is 12% during the charging of styrene-butadiene rubber(SBR) continuous drier, butt) that the technology of known styrene-butadiene rubber(SBR) continuous drier can't realize.So the broken micelle during the inventive method charging can reach requirement by known method production.
The equipment that the inventive method is implemented is, the standard glue conveyer belt type continuous drying equipment of being made up of dry trunk, heating ventilation system, refrigerating unit, the dry chain belt of individual layer, chain belt drive unit, cleaning plant, feeding unit and dumping device and transmission system.Dry trunk can be a steel framed structure and inlays warming plate outward, constitutes a rectangular parallelepiped trunk, is divided into four dryer section and a cooling section in trunk.The dry chain belt of individual layer is assembled by many porose aluminium sheets and chain, and with drive unit.The heating ventilation system then comprises heavy oil combustion stove, blower fan and airduct etc., makes thermal source with fuel oil flame direct heating air, by a centrifugal fan air blast.Simultaneously, hot blast is reclaimed and circulation, make full use of waste heat, reduce fuel consumption.Feeding unit mainly uses vibratory screening apparatus, and the micelle that will wet evenly is layered on the dry chain belt of individual layer.Dumping device comprises shaves rubber roll, spreading roller, broken rubber roll and flat conveying belt, shaves rubber roll and the glue-line of adhesion can be started and take off pine, and spreading roller can be scraped attached residual broken micelle on dry chain belt and sweep totally, and broken rubber roll can be with the glue fragmentation of bulk.The equipment of Zu Chenging promptly is the equipment-standard glue conveyer belt type continuous drier that is applicable to the inventive method therefrom.This equipment can be implemented above-mentioned method satisfactorily, and itself and the supporting use of packing machine have continuously realized that standard glue is from granulation, the synchronous serialization that is dried to packing, mechanize production.
The most preferred embodiment of the inventive method is, when the temperature in the dry trunk (8) is raised to more than 100 ℃, the broken micelle that to produce by known method, water content is at the 34-36%(butt) between, evenly be layered on by feeding unit (5) on the dry chain belt (6) of continuous operation, send into dry trunk (8), successively through one, two, three, four dryer section, bondline thickness on the chain belt is between 25-28 centimetre at this moment, the drying temperature of four dryer section is respectively at 75-80 ℃, 115-120 ℃, 120-125 ℃, between 100-105 ℃, dry air quantity is respectively at 2.4-2.5 cube of meter per second, 3.6-3.7 cube meter per second, 5.3-5.4 cube meter per second, 4.5-4.6 between cube meter per second.Hot blast is forced to pass glue-line, lasts between 2.3-2.5 hour, finishes with regard to drying, with entering the cooling of cooling section (14) exhausting, product temperature is reduced to below 60 ℃, and is last, by dumping device (16) discharging continuously and automatically.
Accompanying drawing 1 and accompanying drawing 2 have been described the most preferred embodiment of present device.
Fig. 1 is the vertical view of standard glue conveyer belt type continuous drying equipment.
Fig. 2 is the front view of equipment shown in Figure 1.
Fig. 1 and Fig. 2 have described a ministerial standard glue conveyer belt type continuous drying equipment, it has a physical dimension (length * wide * height) is 32 * 2.23 * 1.55 meters dry trunk (8), adopting steelframe to inlay warming plate outward constitutes, the heating ventilation system that is made up of heavy oil combustion stove (13), hot air passage (12) is with air heating, and blower fan (11) divides three inlets to blast in the dry trunk (8) by air supply line (9), (10) and (3) warm air.The inlet of air supply line (9) is on the trunk sidewall of distance opening for feed (18) 6-7 rice, and on the trunk sidewall of distance opening for feed (18) 11-12 rice and 13-14 rice, three inlets are all in thermal insulation layer (17) top respectively for the inlet of air supply line (10) and (3).It should be noted that and branch wind short slab (2) is housed in the trunk of going into trunk mouth place of fan outlet tube (3) and divides wind long slab (4) that the heating ventilation system of equipment can form the dryer section of four different air quantity, differing temps in trunk like this.On (18) 30 meters trunk outer side walls of opening for feed refrigerating unit (14) is housed, its effect is to form a cooling section.The sizing material conveying belt is individual layer chain belt (6).One sealed insulating layer (17) is arranged between the working portion of chain belt and the transport portion.In addition, this equipment also has the common wet vent of same category of device (7), chain belt drive unit (15), cleaning plant (1), dumping device (16) and vibrating feed device (5).
Claims (16)
1, a kind of drying means of standard glue is that broken micelle is layered on the dry chain belt by feeding unit, enters dry trunk, it is characterized in that:
A) during charging broken micelle water content at the 28-38%(butt) between;
B) broken micelle evenly is layered on the dry chain belt of continuous operation, and the bondline thickness on the chain belt is limited between 20-30 centimetre; The efficient drying time of broken micelle in trunk is between 2.0-2.8 hour;
C) broken micelle is through one, two, three, four dryer section and a cooling section.
2,, it is characterized in that described broken micelle water content is at the 34-36%(butt according to the method for claim 1) between.
3,, it is characterized in that described broken micelle is limited between 25-28 centimetre at the bondline thickness on the dry chain belt according to the method for claim 1; The working lipe of broken micelle in trunk is between 23-25 hour.
4, according to the method for claim 1, between 60-80 ℃, 110-120 ℃, 115-120 ℃, 95-105 ℃, dry air quantity is respectively between 2.2-2.6 cube of meter per second, 3.4-3.8 cube meter per second, 5.1-5.6 cube meter per second, 4.3-4.7 cube meter per second respectively for the drying temperature that it is characterized in that described one, two, three, four dryer section.
5, according to the method for claim 4, between 75-80 ℃, 115-120 ℃, 120-125 ℃, 100-105 ℃, dry air quantity is respectively between 2.4-2.5 cube of meter per second, 3.6-3.7 cube meter per second, 5.3-5.4 cube meter per second, 4.5-4.6 cube meter per second respectively for the drying temperature that it is characterized in that one, two, three, four dryer section.
6, the equipment of applied code glue drying means is made up of dry trunk, heating ventilation system, dry chain belt, chain belt drive unit, refrigerating unit, cleaning plant, feeding unit and dumping device and transmission system, it is characterized in that:
A) dry trunk is divided into four dryer section and a cooling section;
B) there are a plurality of air supply lines in the heating ventilation system, leads to dry trunk from the different sections of passage, and only by a centrifugal fan air blast;
C) add warm air with the direct fire of heavy oil combustion and make thermal source.
7, drying plant according to claim 6, it is characterized in that there are three heat supply air channels (9), (10) and (13) in the heating ventilation system, respectively at 6-7 rice, 11-12 rice and 13-14 rice of distance equipment opening for feed (18), from the dry trunk of sidewall feeding of dry trunk.
8, drying plant according to claim 7 is characterized in that air supply line (13) feeds the ingress of dry trunk, branch wind long slab (4) is housed and divides wind short slab (2).
9, according to claim 6,7, one of 8 described drying plants, it is characterized in that dry chain belt is the individual layer chain belt.
10, drying plant according to claim 8 is characterized in that dry trunk has a sealed insulating layer (17) between the working portion of chain belt and transport portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86102824.4A CN1004075B (en) | 1986-04-23 | 1986-04-23 | Method and equipment for drying standard gum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86102824.4A CN1004075B (en) | 1986-04-23 | 1986-04-23 | Method and equipment for drying standard gum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86102824A CN86102824A (en) | 1987-11-04 |
| CN1004075B true CN1004075B (en) | 1989-05-03 |
Family
ID=4801857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86102824.4A Expired CN1004075B (en) | 1986-04-23 | 1986-04-23 | Method and equipment for drying standard gum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1004075B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466188B (en) * | 2015-12-31 | 2018-06-08 | 洪湖市卓发化机有限公司 | A kind of drying process device of synthetic rubber |
| CN108044831B (en) * | 2017-12-08 | 2020-10-02 | 海南中化橡胶有限公司 | Method for producing TSR9710 rubber by using standard rubber as raw material |
-
1986
- 1986-04-23 CN CN86102824.4A patent/CN1004075B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86102824A (en) | 1987-11-04 |
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