CN1039611A

CN1039611A - Dry ash exhauster for fuel gas generating furnace

Info

Publication number: CN1039611A
Application number: CN 89105145
Authority: CN
Inventors: 朴石华; 赵彦清; 陈铭义; 姚少坤
Original assignee: SHENYANG SERVICE CENTRE OF ENERGY-SAVING TECHNIQUES
Current assignee: SHENYANG SERVICE CENTRE OF ENERGY-SAVING TECHNIQUES
Priority date: 1989-08-22
Filing date: 1989-08-22
Publication date: 1990-02-14

Abstract

The present invention provides a kind of dry ash exhauster process for using combustible fibre thing, particularly rice husk gas producer, and it mainly is made up of water cooler, ash discharge valve, speed reduction unit, motor and ash discharge transfer roller.This device is applied in the rice husk gas producer, can obtain exsiccant rice hull carbon ash, for the utilization again of rice hull carbon ash provides condition easily, also can guarantee the quality of inflammable gas simultaneously, has played the sealing effectiveness of rice husk gas producer water seal warm therapy in the past.Have good seal performance, applied range, simple in structure, be easy to the characteristics of making and installing.

Description

Dry ash exhauster for fuel gas generating furnace

The present invention relates to a kind of ash exhauster of inflammable gas producer, particularly a kind of dry ash exhauster process of rice husk gas producer.

The countries in the world energy is still very short and nervous at present, a lot of countries and regions are for making full use of national resource, the rice husk gas producer has been installed, rice husk passes through the high temperature anoxycausis in producer, produce inflammable gas, be transported to this inflammable gas in the gas-engine and drive generator for electricity generation, its ash methods of rice husk gas producer that some countries such as domestic and U.S. produce still adopt water seal wet method-be that the producer bottom directly is located in the pond so far, the water surface is higher than the producer bottom surface, water seal is with in the producer and isolate from outer air, to prevent entering of air, the interior rice hull ash of stove this moment just directly falls into the water seal tank under the stove.This ash method has following weak point: it is higher 1. to get rid of rice hull ash water content after soaking of coming, and recycle value is little.If the lagging material of rice husk carbon ash, must wait to dry and to use, and upward the infusion of financial resources of cover drying plant is bigger, therefore is unfavorable for the utilization again to rice husk carbon ash as casting industry.2. to discharge the back temperature by producer higher for rice husk carbon ash, produces a large amount of high-temperature steams when it falls under the stove water seal tank, and containing high-temperature vapour in inflammable gas not only influences into the makings amount, but also gas-engine equipment is had erosion.3. some regional temperature is lower, and water seal tank freezes easily, has influence on normal ash discharge, has therefore limited the use of certain areas again.

At the deficiency of above-mentioned water seal wet technique coal ash discharging, the purpose of this invention is to provide a kind of dry ash exhauster for fuel gas generating furnace, utilize the condition provide convenience again as rice husk carbon ash.

The objective of the invention is to realize: below the fire grate of rice husk gas producer, be provided with and bring the mouth of a river into by following technical scheme, " funnel " shape water cooler of water outlet and water-cooled interlayer, the discharge port of water cooler is connected with the ash discharge valve, this ash discharge valve comprises the valve body with upper shed and lower opening, the both sides correspondence of valve body is provided with bearing and step cover and sealing-ring, the inside of valve body is provided with the hollow cylinder spool, have the opening that charging and discharging are used on the cylindrical surface of this spool, the outside surface of spool and the internal surface of valve body are running fit, the bearing of valve body both sides links to each other by the transmission shaft that crosses in the spool, one end of transmission shaft links to each other with electric motor by gear reducer, spool by screw retention on transmission shaft; The bottom of ash discharge valve is equipped with sealed chain ash discharge transfer roller or sealed spiral ash discharge transfer roller.

In order to make rice husk carbon ash in water cooler, obtain cooling comparatively uniformly and the further temperature that reduces rice husk carbon ash, the cooling tube of some connection water cooler water-cooled interlayers can be set in water cooler.Be provided with the water-cooled interlayer of bringing the mouth of a river and water outlet in the bottom of sealed chain ash ejector or the outer wall of sealed spiral ash discharge transfer roller.

Principle of work of the present invention is: rice husk carbon ash falls into water cooler after being discharged by the producer fire grate, high temperature rice husk carbon ash cools off for some time in water cooler after, actuating motor also drives the ash discharge valve working through gear reducer, when the opening of spool in the ash discharge valve rotates to the valve body upper shed, rice husk carbon ash just falls in the hollow cylinder spool, this moment, the valve body lower opening was shut on all the other cylindrical surface of spool, when valve core opening rotates to the valve body lower opening, the rice husk carbon ash of having packed in the spool just falls into the ash discharge transfer roller, and by it rice husk carbon ash is transferred out.Spool in the ash discharge valve is being adorned rice husk carbon ash and is being unloaded in the rice husk carbon ash process, and the valve body upper and lower opening of ash discharge valve is in non-connected state all the time, prevents entering of air with this.

The present invention compares with existing water seal wet technique coal ash discharging device has following advantage: the rice husk carbon ash that 1. transfers out need not any drying plant, can directly apply in the industrial and agricultural production.Therefore can reduce investment outlay save energy; 2. good effect has been played in the maintenance of generating set; 3. be not subjected to the restriction of envrionment temperature, range of application is wider.

The invention will be further described below in conjunction with embodiment and accompanying drawing thereof.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the axial sectional view of ash discharge valve among Fig. 1.

Fig. 3 is the horizontal removed sectional view of spool among Fig. 2.

Fig. 4 is a vane-type valve core structure synoptic diagram.

Fig. 5 is the transverse cross-sectional view of Fig. 4.

Fig. 6 is a spiral ash discharge conveyor construction synoptic diagram.

Fig. 1～3rd, one embodiment of the present of invention.It is made up of water cooler 4, ash discharge valve 13, gear reducer 5, alternating current machine 6, ash discharge transfer roller 29.Water cooler 4 is bilayer " conical hopper " the formula containers that adopt metallic sheet material to make, its with water-cooled interlayer 27 feed water coolants, water coolant is to carry out round-robin by water-in 3 and water outlet 14 that water cooler 4 upper and lowers are provided with, in order to make rice husk carbon ash in water cooler 4, obtain cooling off comparatively uniformly, in this water cooler, be provided with the cooling tube 16 that is communicated with water-cooled interlayer 27, the radical of cooling tube 16 needs to decide according to the size of producer 2 and water cooler 4, unsuitable overmatter, otherwise be unfavorable for ash discharge, 1 among Fig. 1 is the fire grate in the producer 2.

Ash discharge valve 13 is special valves of the present invention, it is to adopt heat-stable metallic substance to make, comprise valve body 18 with upper shed 17 and lower opening 24, the both sides correspondence of valve body 18 is provided with bearing 26, step cover 21 and sealing-ring 22, the inside of valve body 18 is provided with the spool 19 that is hollow cylinder, have the opening 28 that charging and discharging are used on the periphery of this spool, the internal surface of the outside surface of spool 19 and valve body 18 is a running fit, spool 19 by screw 20 be fixed on run through in it and with transmission shaft 23 that two bearings 26 link to each other on, one end of this transmission shaft links to each other with alternating current machine 6 by gear reducer 5, bearing 26 can be selected rolling bearing for use, also can select sliding surface bearing for use, transmission shaft 23 and fix spool 19 on it during work through alternating current machine 6 and gear reducer 5 driven rotary, when the opening 28 of spool 19 up the time, rice husk carbon ash 15 falls in the spool 19, when the opening of spool 19 down the time, rice husk carbon ash in the spool 19 falls in the sealed chain ash discharge transfer roller 29,19 years rice husk carbon of spool ash and unloading in the rice husk carbon ash process, on the valve body 18, lower opening 17,24 are in non-connected state all the time, have prevented entering of air.Spool in the ash discharge valve 13 can also be made into leaf structure (seeing Fig. 4～5), promptly at an axle sleeve 30 first-class blades 31 that are arranged with perpendicular to the transmission axis, the number of blade 31 is no less than 6 at least, otherwise be difficult to play sealing function, the both sides correspondence of blade 31 is provided with spool disk 32, axle sleeve 30 is fixed on by screw 33 on the transmission shaft 23 of ash discharge valve, and the spool of this kind structure is convenient to arrange continuously rice husk carbon ash.

Ash discharge transfer roller 29 is sealed chain transfers, it is by sealed enclosure 8, scraper chain 7, opening for feed 12, discharge port 9 is formed, its bottom is provided with brings the mouth of a river 10 into, the water-cooled interlayer of water outlet 11, purpose is the further cooling of rice husk carbon ash to carrying, it is lower to make it last rice husk carbon ash temperature of discharging, can not fire again, ash discharge transfer roller 29 also can adopt by screw-blade 34, transmission shaft 39, speed reduction unit 36, alternating current machine 37 and ash inlet 41, the sealed worm conveyor (see figure 6) that ash output hole 38 is formed, and on its outer wall, be provided with the water-cooled interlayer of bringing the mouth of a river 35 and water outlet 40 into.

Be connected by flange between ash discharge valve 13 and water cooler 4 and the ash discharge transfer roller 29, so that install and maintenance.

The present invention not only is suitable for the ash discharge of rice husk gas producer dry method, also is applicable to the various various heat power equipment dry method ash discharges that use fibre object simultaneously.

Claims

1, a kind of dry ash exhauster for fuel gas generating furnace, it is characterized in that: comprise having water-in, " funnel " shape water cooler of water outlet and water-cooled interlayer, the discharge port of water cooler is connected with the ash discharge valve, this ash discharge valve comprises the valve body with upper shed and lower opening, the both sides correspondence of valve body is provided with bearing, step cover and sealing-ring, the inside of valve body is provided with the hollow cylinder spool, have the opening that charging and discharging are used on the cylindrical surface of this spool, the outside surface of spool and the internal surface of valve body are running fit, the bearing of valve body both sides links to each other by the transmission shaft that crosses in the spool, one end of transmission shaft links to each other with motor reel by gear reducer, spool is fixed on the transmission shaft, and the bottom of ash discharge valve is equipped with sealed chain ash discharge transfer roller or sealed spiral ash discharge transfer roller.

2, by the described dry ash exhauster for fuel gas generating furnace of claim 1, it is characterized in that: the cooling tube that is communicated with water cooler water-cooled interlayer also can be set in water cooler.

3, by the described dry ash exhauster for fuel gas generating furnace of claim 1, it is characterized in that: also can be provided with the water-cooled interlayer of bringing the mouth of a river and water outlet in the bottom of sealed chain ash discharge transfer roller or the outer wall of sealed spiral ash discharge transfer roller.

4, by the described dry ash exhauster for fuel gas generating furnace of claim 1, it is characterized in that: the spool in the described ash discharge valve also can be made up of axle sleeve, blade and spool disk, promptly at a first-class blade that is arranged with at least 6 perpendicular to axis of axle sleeve, the both sides correspondence of blade is provided with the spool disk.