CN208475832U - A kind of cedar sawdust high efficiency drying equipment - Google Patents

Abstract

The utility model discloses a kind of equipment of cedar sawdust high efficiency drying, it includes drying unit and cooling device, and drying unit includes drying oven and drying pipe；The cooling device includes U-shaped cooling tube, and U-shaped cooling tube one end is connect with drying pipe, and the other end is connect by exhaust fan with rotoclone collector, and the discharge bucket side of rotoclone collector is connect with blowing line, and blowing line is connect by air blower with drying oven.The drying effect and drying efficiency of cedar sawdust can be improved in the utility model, reduces the water content of cedar sawdust, and then improves cedar sawdust pelleting quality of fuel, and the capacity usage ratio of drying can be improved, and reduces environmental pollution, reduces production cost.

Description

A kind of cedar sawdust high efficiency drying equipment

Technical field

The utility model relates to a kind of discarded forest resources comprehensive utilization technique, especially a kind of cedar sawdust high efficiency drying is set It is standby.

Background technique

China fir is tropical trees, is Yangtze River in China basin, the cultivation of Qinling Mountains areas to the south is most wide, growth is fast, economic value High commerical tree species.The trunk texture of Chinese fir is straight, and structure is careful, and material is soft, and corrosion resistant is mothproof, is widely used in building, bridge, makes Ship, furniture etc..It is China fir that the building materials of China, which have a quarter,.And a large amount of sawdusts and wood shavings etc. are formed in timber work in-process Waste, rationally effectively carrying out reprocessing to the wood waste of recycling is to efficiently use one of the effective way of timber, usually It is to be burned or buried processing or carry out corruption fermentation inhibition and generation fertilizer, not only can cause environmental pollution, but also waste material It is easily wasted, recovery utilization rate is not high, it is difficult to the high-value product of the huge market demand be made.Applicant is by utilizing cedar sawdust Recycling prepares fir essential oil and granular fuel, but discovery cedar sawdust is smart in distillation extraction China fir in the actual production process Large quantity of moisture can be absorbed when oily, since the drying oven fuel economy of conventional containment is lower, fuel is difficult to full combustion, causes Drying oven drying effect is poor, and cedar sawdust is unable to get abundant drying, and then causes to utilize the cedar sawdust after extraction fir essential oil The granular fuel water content of production is higher, granular fuel it is second-rate, and when extracting fir essential oil steam boiler cigarette Gas and after-heat are difficult to be handled and utilize, and have greater environmental impacts.Therefore, system is recycled in cedar sawdust at present There are cedar sawdust drying effect is poor when granular fuel, cedar sawdust is difficult to sufficiently be dried, and Drying Rates are slower, energy when drying Source utilization rate is lower, the larger problem of problem of environmental pollution.

Utility model content

The purpose of the utility model is to provide a kind of cedar sawdust high efficiency drying equipment.China fir can be improved in the utility model The drying effect and drying efficiency of bits reduce the water content of cedar sawdust, and then improve cedar sawdust pelleting quality of fuel, and And the capacity usage ratio of drying can be improved, it reduces environmental pollution, reduces production cost.

The technical solution of the utility model includes: a kind of cedar sawdust high efficiency drying equipment, including drying unit and cooling device, it dries Equipment for drying includes drying oven and the drying pipe connecting with drying oven；The cooling device includes U-shaped cooling tube, U-shaped cooling tube one End is connect with drying pipe, and the other end is connect by exhaust fan with rotoclone collector, the discharge bucket side of rotoclone collector and air blast Pipeline connection, blowing line are connect by air blower with drying oven.

In a kind of cedar sawdust high efficiency drying equipment above-mentioned, the drying oven includes combustion bin, and combustion bin side, which is equipped with, dries Dry storehouse, combustion bin one end are equipped with fuel adding mouth, air blast connector are equipped with above fuel adding mouth, and blowing line is connected by air blast Interface is connect with combustion bin, and feeding inlet is equipped with above the warehouse for drying, and warehouse for drying side is connected to drying pipe.

In a kind of cedar sawdust high efficiency drying equipment above-mentioned, the feeding inlet side passes through smoke discharging pipe and steam copper fire grate Mouth connection

In a kind of cedar sawdust high efficiency drying equipment above-mentioned, the drying pipe is equipped with protective tube with U-shaped cooling tube junction Road, insurance pipeline include the bridge piece connecting with drying pipe, and bridge piece is connect by diversion box with U-shaped cooling tube, are shifted Case side is equipped with slag-drip opening.

In a kind of cedar sawdust high efficiency drying equipment above-mentioned, the side wall of the discharge bucket of the blowing line and rotoclone collector Connection, blowing line and discharge bucket junction are equipped with pull valve plate.

Compared with prior art, the high-temperature flue gas being discharged by steam boiler smoke outlet preheats shirt sawdust, then by The heat for the generation burnt in drying oven dries cedar sawdust, improves heat utilization rate, improves the rate of drying, while China fir The dust that the porous structure of sawdust can discharge steam boiler adsorbs, and reduces steam boiler pollutant emission；Pass through setting Blowing line is by discharge bucket, air blower and drying oven combustion chamber, the air-flow generated using air blower, by a small amount of cedar sawdust by Discharge bucket is pumped into blowing line and mixes with air, then is blown into drying oven,

Using cedar sawdust small volume, the volume ratio that cedar sawdust mixes with air is 3% ~ 15%:97% ~ 85%, cedar sawdust drum It can catch fire moment, and be burnt sufficiently after entering in drying oven, the heat generated using cedar sawdust burning promotes fuel in drying oven Burning improves fuel economy in drying oven, improves drying in-furnace temperature, improves cedar sawdust drying effect and baking to reach The purpose of dry rate；By the way that pull valve plate is arranged in blowing line and discharge bucket junction, can be adjusted by adjusting pull valve plate The amount of blowing line sucking cedar sawdust；By being equipped with insurance pipeline in drying pipe and U-shaped cooling tube junction, cedar sawdust is avoided to exist Cedar sawdust caused by blocking in U-shaped cooling tube burns at high temperature is carbonized or occurs dust explosion, guarantees production safety, by setting Slag-drip opening is set convenient for dredging, the wastes such as the cedar sawdust of deblocking and wooden slag can be taken out.

It tests through practical operation: cedar sawdust being dried using the utility model, using the drying oven of equal fuel, Mean temperature is about 130 DEG C high in the furnace of the relatively traditional drying oven of the drying oven of the utility model, and fuel economy improves about 14%, water content is minimum in cedar sawdust can be to 2%, and tradition relatively dries Kiln seasoned cedar sawdust water content 5%, reduce 3% or so, Drying effect is obvious, and by way of pre-heating drying, reduces steam boiler exhaust emissions, improves exhaust heat-energy and utilizes, dries Dry speed is opposite to improve about 15%.

In conclusion the drying effect and drying efficiency of cedar sawdust can be improved in the utility model, containing for cedar sawdust is reduced Water, and then cedar sawdust pelleting quality of fuel is improved, and the capacity usage ratio of drying can be improved, it reduces environmental pollution, Reduce production cost.

Detailed description of the invention

Fig. 1 is the flow diagram of the utility model；

Fig. 2 is the structural schematic diagram of warehouse for drying；

Fig. 3 is the structural schematic diagram of drying pipe, insurance pipeline and U-shaped cooling tube；

Fig. 4 is the structural schematic diagram that discharge bucket is connected with blowing line.

The label in accompanying drawing is: 1- drying oven, 2- drying pipe, 3-U type cooling tube, 4- exhaust fan, 5- discharge bucket, 6- air blast Pipeline, 7- air blower, 8- combustion bin, 9- warehouse for drying, 10- fuel adding mouth, 11- air blast connector, 12- feeding inlet, 13- insurance Pipeline, 14- bridge piece, 15- diversion box.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model The foundation of limitation.

Embodiment.A kind of cedar sawdust high efficiency drying equipment, as shown in Figure 1 and Figure 4, including drying unit and cooling device, Drying unit includes drying oven 1 and the drying pipe 2 connecting with drying oven 1；The cooling device includes U-shaped cooling tube 3, U-shaped cold But 3 one end of pipe is connect with drying pipe 2, and the other end is connect by exhaust fan 4 with rotoclone collector, the discharge bucket 5 of rotoclone collector Side is connect with blowing line 6, and blowing line 6 is connect by air blower 7 with drying oven 1.

8 side of combustion bin is equipped with warehouse for drying 9, and 8 one end of combustion bin is equipped with fuel adding mouth 10, sets above fuel adding mouth 10 There is air blast connector 11, blowing line 6 is connect by air blast connector 11 with combustion bin 8, and pan feeding is equipped with above the warehouse for drying 9 Mouth 12,9 side of warehouse for drying are connected to drying pipe 2；12 side of feeding inlet is connected by smoke discharging pipe and steam boiler smoke outlet It connects；The drying pipe 2 is equipped with insurance pipeline 13 with U-shaped 3 junction of cooling tube, and insurance pipeline 13 includes connecting with drying pipe 2 Bridge piece 14, bridge piece 14 are connect by diversion box 15 with U-shaped cooling tube 3, and 15 side of diversion box is equipped with slag-drip opening；It is described Blowing line 6 is connect with the side wall of the discharge bucket 5 of rotoclone collector, and blowing line 6 and 5 junction of discharge bucket are equipped with pull valve Plate.

Working principle: the high-temperature flue gas being discharged by steam boiler smoke outlet preheats shirt sawdust, then by drying oven 1 The heat of the generation of interior burning dries cedar sawdust, improves heat utilization rate, improves the rate of drying, while cedar sawdust The dust that porous structure can discharge steam boiler adsorbs, and reduces steam boiler pollutant emission；By the way that blast pipe is arranged Road 6 is by 1 combustion chamber of discharge bucket 5, air blower 7 and drying oven, the air-flow generated using air blower 7, by a small amount of cedar sawdust by Discharge bucket 5 is pumped into blowing line 6 and mixes with air, then is blown into drying oven 1, using cedar sawdust small volume, cedar sawdust with The volume ratio of air mixing is 3% ~ 15%:97% ~ 85%, and cedar sawdust can catch fire moment after blasting in drying oven 1, and burns and fill Point, the heat generated using cedar sawdust burning is promoted fuel combustion in drying oven 1, improves fuel economy in drying oven 1, Temperature in drying oven 1 is improved, to achieve the purpose that improve cedar sawdust drying effect and Drying Rates；By in blowing line 6 Pull valve plate is set with 5 junction of discharge bucket, the amount that blowing line 6 sucks cedar sawdust can be adjusted by adjusting pull valve plate；It is logical It crosses and is equipped with insurance pipeline 13 in drying pipe 2 and U-shaped 3 junction of cooling tube, avoiding cedar sawdust from blocking in U-shaped cooling tube 3 causes Cedar sawdust burn at high temperature carbonization or occur dust explosion, guarantee production safety, by setting slag-drip opening convenient for dredging, can The wastes such as the cedar sawdust of deblocking and wooden slag are taken out.

Claims (5)

1. a kind of cedar sawdust high efficiency drying equipment, it is characterised in that: including drying unit and cooling device, drying unit includes drying Dry furnace (1) and the drying pipe (2) being connect with drying oven (1)；The cooling device includes U-shaped cooling tube (3), U-shaped cooling tube (3) One end is connect with drying pipe (2), and the other end is connect by exhaust fan (4) with rotoclone collector, the discharge bucket (5) of rotoclone collector Side is connect with blowing line (6), and blowing line (6) is connect by air blower (7) with drying oven (1).

2. a kind of cedar sawdust high efficiency drying equipment according to claim 1, it is characterised in that: the drying oven (1) includes Combustion bin (8), combustion bin (8) side are equipped with warehouse for drying (9), and combustion bin (8) one end is equipped with fuel adding mouth (10), fuel addition Air blast connector (11) are equipped with above mouth (10), blowing line (6) is connect by air blast connector (11) with combustion bin (8), institute It states and is equipped with feeding inlet (12) above warehouse for drying (9), warehouse for drying (9) side is connected to drying pipe (2).

3. a kind of cedar sawdust high efficiency drying equipment according to claim 2, it is characterised in that: feeding inlet (12) side It is connect by smoke discharging pipe with steam boiler smoke outlet.

4. a kind of cedar sawdust high efficiency drying equipment according to claim 1, it is characterised in that: drying pipe (2) with it is U-shaped Cooling tube (3) junction is equipped with insurance pipeline (13), and insurance pipeline (13) includes the bridge piece connecting with drying pipe (2) (14), bridge piece (14) is connect by diversion box (15) with U-shaped cooling tube (3), and diversion box (15) side is equipped with slag-drip opening.

5. a kind of cedar sawdust high efficiency drying equipment according to claim 1, it is characterised in that: the blowing line (6) with The side wall of the discharge bucket (5) of rotoclone collector connects, and blowing line (6) and discharge bucket (5) junction are equipped with pull valve plate.