CN201897224U - Rotary drying device for refuse incineration - Google Patents

Abstract

The utility model discloses a rotary drying device for refuse incineration, which is arranged on the side wall at the middle section of a vertical incinerator; the rotary drying device and the vertical incinerator are arranged crossly and the rotary drying device is communicated with the incinerator; the rotary drying device comprises two parts: a rotary drying kiln and a dry gas conveyor, wherein the rotary drying kiln comprises a kiln head, a kiln tail, a kiln body and a driving device; the kiln head is provided with a refuse feeding hole; the kiln tail is connected with the incinerator; the dry gas conveyor consists of a high-pressure air spray head and a smoke gas pipeline; one nozzle of the smoke gas pipeline is connected with the side wall of the two combustion chambers of the incinerator; the other nozzle of the smoke gas pipeline is provided with the high-pressure air spray head; the smoke gas pipeline at the high-pressure air spray head end is fixed above the rotary drying kiln by a smoke gas joint; and the refuse feeding hole can be fixed at the kiln head by the smoke gas joint so that the rotary drying kiln is fixed and communicated with the dry gas conveyor. The rotary drying device is particularly suitable for pre-drying treatment and material feeding before the incineration of domestic waste with high water content and low heat value.

Description

A kind of waste incineration rotary drying device

Technical field

The utility model relates to a kind of waste incineration drying unit, refers in particular to a kind of waste incineration rotary drying device, and it is applicable to consumer waste incineration oven dry processing.

Background technology

Rubbish will experience drying, burn, burns this plurality of processes in the incinerator.Existing incinerator is the hot-air that adds that is blown into normal temperature air in the mobile grate bottom or is higher than air tens degree, impel incinerator internal combustion flow of flue gas to come garbage drying, but Ran Shao high-temperature flue gas flows few like this, be difficult to blow into the inside of rubbish, high-temperature flue gas is slow to the rate of drying of rubbish, drying efficiency is not high, so that combustion instability, efficiency of combustion is low.If the msw water content height, drying effect is bad, when causing combustion status deteriorates, also must use the combustion-supporting auxiliary combustion, increases the burning cost.Simultaneously, the instability of burning, efficiency of combustion is low, can make the pernicious gas incomplete combustion, can increase the discharging of toxic and harmful, does not meet environmental requirement.

The utility model content

The purpose of this utility model provides a kind of waste incineration rotary drying device, to solve the problem that rubbish influences waste incineration efficient because of high-moisture percentage and burns effect.

For realizing the purpose of this utility model, the inventor takes following technical scheme: a kind of waste incineration rotary drying device, this device is arranged on the sidewall of vertical incinerator stage casing, become cross layout with vertical incinerator, and be connected with incinerator, this device comprises revolution drying kiln and dry gas conveyer two-part structure, wherein turns round drying kiln and comprises kiln hood, kiln tail, kiln body and drive unit, the kiln hood place is provided with a rubbish dog-house, and the kiln tail is connected with incinerator; The dry gas conveyer is made up of pressure-air shower nozzle and flue, flue one port is connected on the incinerator dual firing chamber sidewall, the another port is provided with the pressure-air shower nozzle, the flue of pressure-air nozzle end is fixed on revolution drying kiln top by the flue gas interface, this flue gas interface is fixed on the kiln hood place with the rubbish dog-house simultaneously, the connection of formation revolution drying kiln and dry gas conveyer, fixing.

Waste incineration rotary drying device operation principle of the present utility model is: high-temperature flue gas enters in the revolution drying kiln that is arranged on the incinerator stage casing under the cross-ventilation effect that the temperature difference causes in the vertical incinerator, high-temperature flue gas and rubbish form cross countercurrent heat exchange, garbage drying; With the pressure-air air blast pressure-air is passed through the pressure-air shower nozzle, be blown into the inner chamber of dry gas conveyer flue, after making its inner chamber form negative pressure, spray into the dual firing chamber of incinerator after will turning round inner chamber that high-temperature flue gas behind the drying kiln inner drying rubbish is drawn into flue and pressure-air mixes by the flue gas interface, mixed pressure-air uses as the combustion air of dual firing chamber, can improve dual firing chamber's efficiency of combustion.High-temperature flue gas recycling all improved the firing efficiency of rubbish and flue gas, reduced the use of auxiliary fuel, and incinerator also can miniaturization, reduces the manufacturing and the operating cost of incinerator; Also can make the higher house refuse of water content, in the incinerator stove with smooth combustion under the low-oxygen high-temperature state.

Waste incineration rotary drying device of the present utility model, the part high-temperature flue gas that self produces when it utilizes waste incineration carries out high efficiency drying to rubbish, be specially adapted to the preceding prebake processing of burning and the charging of the low-calorie house refuse of high-moisture percentage (particularly domestic waste), effectively solve the problem that influences waste incineration efficient and burning effect because of high-moisture percentage.

Description of drawings

Fig. 1 is a waste incineration rotary drying device structural representation of the present utility model;

Among Fig. 1,

Expression flow of flue gas direction,

The expression pressure-air sprays into direction,

Expression rubbish incidence.

The specific embodiment

Now specify the technical solution of the utility model: as shown in Figure 1 in conjunction with Figure of description, a kind of waste incineration rotary drying device, this device is arranged on the vertical incinerator 9 stage casing sidewalls 13, with 9 one-tenth cross layouts of vertical incinerator, and be connected with incinerator, this device comprises revolution drying kiln 2 and dry gas conveyer 4 two-part structure, wherein turn round drying kiln and comprise kiln hood 16, kiln tail 14, kiln body 19 and drive unit 3, revolution drying kiln 2 inside are lined with fire clay 6, can high temperature resistantly reach 1300 ℃ of temperature, kiln hood 16 places are provided with a rubbish dog-house 1, and kiln tail 14 is connected with incinerator 9; Dry gas conveyer 4 is made up of pressure-air shower nozzle 5 and flue 18, flue 18 1 ports are connected on the incinerator dual firing chamber sidewall 10, the another port is provided with pressure-air shower nozzle 5, the flue 18 of pressure-air nozzle end is fixed on revolution drying kiln 2 tops by flue gas interface 17, this flue gas interface 17 is fixed on rubbish dog-house 1 kiln hood 16 places simultaneously, the connection of formation revolution drying kiln 2 and dry gas conveyer 3, fixing.

During work, rubbish enters the kiln hood 16 of swinging drying kiln 2 from rubbish dog-house 1, and swinging drying kiln 2 is involved in rubbish and is fed forward under the drive of drive unit 3; High-temperature flue gas enters swinging drying kiln kiln body 19 from kiln tail 14, rubbish in rotary course along the kiln wall certain height of climbing, fall to rolling by self gravitation then, in this process, fully contact with high-temperature flue gas, high-temperature flue gas and rubbish form cross countercurrent heat exchange, with rubbish heating and take away moisture; Rubbish after the prebake is discharged by kiln tail 10, falls in the vertical incinerator 9; Pressure-air shower nozzle 5 ejection pressure-airs make dry gas conveyer 4 form negative pressure, by flue gas interface 17 high-temperature flue gas is drawn in the dry gas conveyer 4, high-temperature flue gas is with after pressure-air mixes in dry gas conveyer 4, is blown into from the sidewall of incinerator dual firing chamber 12; Mixed flue gas is efficient the decomposition in dual firing chamber 12, makes the more uniform temperature of smoke combustion.

Claims (2)

1. waste incineration rotary drying device, it is characterized in that this device is arranged on vertical incinerator (9) the stage casing sidewall (13), become cross layout with vertical incinerator (9), and be connected with incinerator, this device comprises revolution drying kiln (2) and dry gas conveyer (4) two-part structure, wherein turn round drying kiln and comprise kiln hood (16), kiln tail (14), kiln body (19) and drive unit (3), kiln hood (16) locates to be provided with a rubbish dog-house (1), and kiln tail (14) is connected with incinerator (9); Dry gas conveyer (4) is made up of pressure-air shower nozzle (5) and flue (18), flue (18) one ports are connected on the incinerator dual firing chamber sidewall (10), the another port is provided with pressure-air shower nozzle (5), the flue of pressure-air nozzle end (18) is fixed on revolution drying kiln (2) top by flue gas interface (17), this flue gas interface (17) is fixed on kiln hood (16) with rubbish dog-house (1) simultaneously and locates, the connection of formation revolution drying kiln (2) and dry gas conveyer (3), fixing.

2. waste incineration rotary drying device according to claim 1 is characterized in that turning round drying kiln (2) inside and is lined with fire clay (6).

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