CN215002851U - Rotary kiln for material calcination reduction treatment - Google Patents

Abstract

The utility model belongs to the technical field of the activated carbon reduction is handled and is used, specifically disclose a rotary kiln that material calcination reduction was handled, including first concrete base, second concrete base, third concrete base, kiln tail frame, kiln hood cover subassembly, tow boat subassembly, drive assembly, driving motor, keep off the carrier roller subassembly, tail kiln hood, horizontal inlet pipe, feed inlet, take spiral tooth feeding shaft, speed reducer, barrel subassembly, heat exchange tube, a plurality of air inlet, first heat exchange tube gas outlet, second heat exchange tube gas outlet, the discharge gate, gas outlet and take the valve discharging pipe. The utility model discloses a rotary kiln that reduction was handled is calcined to material's beneficial effect lies in: the equipment has reasonable design structure, can finish the high-efficiency and high-quality calcination reduction treatment of the activated carbon after the whole structure is assembled, simultaneously realizes the stability and safety of the calcination reduction treatment, can realize the standard requirement of environmental protection production operation, and has strong practicability.

Description

Rotary kiln for material calcination reduction treatment

Technical Field

The utility model belongs to the technical field of the reduction of active carbon is handled and is applied, concretely relates to material calcines reduction's rotary kiln.

Background

The active carbon regeneration method is characterized in that active carbon which is fully absorbed is treated under certain conditions and then is activated again. The activated carbon has been used in large quantities in the aspects of environmental protection, industry and civilian use, and has achieved considerable effect, however, after the activated carbon is fully absorbed and replaced, the activated carbon is used for absorption, and is a physical process, therefore, the impurities in the used activated carbon can be desorbed by adopting high-temperature steam, and the original activity of the impurities can be recovered, so as to achieve the purpose of repeated use, and the regenerated activated carbon has obvious economic benefit, and the purpose of the regenerated activated carbon can be continuously and repeatedly used and regenerated.

In the calcining reduction treatment process of the activated carbon, the rotary kiln calcining reduction method is a commonly adopted method, and the reasonably designed rotary kiln structure directly influences the efficiency, quality and the like of the activated carbon reduction.

Therefore, based on the above problems, the present invention provides a rotary kiln for material calcination reduction treatment.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at providing a material calcines reduction processing's rotary kiln, its project organization is reasonable, and overall structure assembles the back, can accomplish high-efficient, the high-quality reduction processing of calcining of active carbon, realizes simultaneously that the reduction processing of calcining is stable, safe, can realize environmental protection production operation standard requirement, and the practicality is strong.

The technical scheme is as follows: the utility model provides a rotary kiln for material calcination reduction treatment, which comprises a first concrete base, a second concrete base, a third concrete base, a kiln tail frame, a kiln head cover component, a tug wheel component, a transmission component, a driving motor, a supporting wheel component and a tail kiln cover, wherein the kiln head cover component, the tug wheel component, the transmission component, the driving motor, the supporting wheel component and the tail kiln cover are respectively arranged on the first concrete base, the second concrete base, the third concrete base and the kiln tail frame, the transmission component is connected with the driving motor, a transverse inlet pipe connected with the kiln head cover component, a feed inlet arranged on the transverse inlet pipe, a feeding shaft with spiral teeth arranged in the transverse inlet pipe, a speed reducer connected with the feeding shaft with spiral teeth, a barrel component respectively connected with the kiln head cover component, the tug wheel component, the transmission component, the driving motor, the supporting wheel component and the tail kiln cover, a heat exchange pipe arranged in the barrel component, and a plurality of air inlets arranged on the heat exchange pipe, and a first heat exchange tube gas outlet and a second heat exchange tube gas outlet which are arranged on the barrel component and matched with the heat exchange tubes for use, a discharge port and a gas outlet which are arranged on the tail kiln cover, and a discharge pipe with a valve, which is connected with the discharge port.

According to the technical scheme, the rotary kiln for material calcination reduction treatment further comprises a kiln head sealing ring and a kiln tail sealing ring which are arranged at two ends of the barrel assembly and are respectively matched with the kiln head cover assembly and the kiln tail cover for use.

According to the technical scheme, the rotary kiln for material calcination reduction treatment further comprises a steam jet outlet which is arranged on the barrel assembly and is positioned on one side of the air outlets of the first heat exchange tube and the second heat exchange tube.

According to the technical scheme, the rotary kiln for material calcination reduction treatment further comprises a temperature measuring hole, a discharge box fire observation opening, an access hole and a standby interface which are arranged on a tail kiln cover.

According to the technical scheme, the size of the access hole is 500mm x 500 mm.

Compared with the prior art, the utility model discloses a rotary kiln that reduction was handled is calcined to material's beneficial effect lies in: the equipment has reasonable design structure, can finish the high-efficiency and high-quality calcination reduction treatment of the activated carbon after the whole structure is assembled, simultaneously realizes the stability and safety of the calcination reduction treatment, can realize the standard requirement of environmental protection production operation, and has strong practicability.

Drawings

FIG. 1 is a schematic structural view of a part of a rotary kiln for calcination and reduction of a material according to the present invention;

FIG. 2 is a schematic diagram of a right-side view of a tail kiln hood and the like of a rotary kiln for material calcination reduction treatment according to the present invention;

FIG. 3 is a schematic top view of a rotary kiln for calcination and reduction of materials according to the present invention;

FIG. 4 is a left side view schematic diagram of the barrel assembly and the transmission assembly of the rotary kiln for calcination and reduction treatment of materials according to the present invention;

fig. 5 is a left side view structure diagram of the cylinder assembly and the tug wheel assembly of the rotary kiln for material calcination reduction treatment of the utility model.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

Examples

The rotary kiln for calcining and reducing materials as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5 comprises a first concrete base 23, a second concrete base 24, a third concrete base 25, a kiln tail frame 13, a kiln head cover assembly 1, a tug wheel assembly 5, a transmission assembly 6, a driving motor 28, a blocking wheel assembly 10 and a tail kiln cover 12 which are respectively arranged on the first concrete base 23, the second concrete base 24, the third concrete base 25 and the kiln tail frame 13, wherein the transmission assembly 6 is connected with the driving motor 28, a transverse feeding pipe 19 connected with the kiln head cover assembly 1, a feeding port 20 arranged on the transverse feeding pipe 19, a feeding shaft 21 with helical teeth arranged in the transverse feeding pipe 19, a speed reducer 18 connected with the feeding shaft with helical teeth 21, and the kiln head cover assembly 1, the tug wheel assembly 5, the transmission assembly 6, the kiln head cover assembly 1, The device comprises a driving motor 28, a barrel component 4 connected with a supporting wheel retaining component 10 and a tail kiln hood 12, a heat exchange tube 7 arranged in the barrel component 4, a plurality of air inlets 30 arranged on the heat exchange tube 7, a first heat exchange tube air outlet 26 and a second heat exchange tube air outlet 29 which are arranged on the barrel component 4 and matched with the heat exchange tube 7, a discharge port 22 and an air outlet 23-1 which are arranged on the tail kiln hood 12, and a discharge pipe 27 with a valve, which is connected with the discharge port 22.

Preferably, the rotary kiln for material calcination reduction treatment further comprises a kiln head sealing ring 2 and a kiln tail sealing ring 11 which are arranged at two ends of the cylinder component 4 and are respectively matched with the kiln head cover component 1 and the kiln tail cover 12; the rotary kiln for calcining and reducing the materials also comprises a steam jet outlet 3 which is arranged on the barrel component 4 and is positioned at one side of the air outlet 26 of the first heat exchange tube and the air outlet 29 of the second heat exchange tube; the rotary kiln for the material calcination reduction treatment also comprises a temperature measuring hole 15, a discharge box fire observation hole 14, an access hole 17 and a spare interface 16 which are arranged on the tail kiln hood 12; and the size of the access hole 17 is 500mm by 500 mm.

The rotary kiln for calcining and reducing the materials has the advantages that 1, open fire and a burner interface are not arranged in the rotary kiln; 2. high-temperature flue gas enters a high-temperature heat exchange tube in the kiln body from the outlet of the secondary combustion chamber through a high-temperature flue from the kiln tail, so that waste activated carbon materials with the water content of about 50% are dried; 3. high-temperature flue gas is led into the kiln body from the kiln tail end through a central large heat exchange tube, and low-temperature flue gas is led out from the kiln body from the kiln head end through 9 small heat exchange tubes (heat exchange tubes) and is led out from the kiln body through a flue in the middle of the kiln body; 4. the central high-temperature heat exchange tube is supported and fixed through the front and the back of the kiln body and is integrated with the kiln body, and after a motor of the rotary kiln is started, the rotary kiln and the internal heat exchange tube are driven to rotate together through a transmission part; 5. when the high-temperature flue gas in the central heat exchange tube is overheated, in order to prevent the waste activated carbon in the kiln body from burning, a steam pipeline valve outside the kiln body can be opened, so that a steam ring pipe arranged in the kiln body can spray steam to the central heat exchange tube, the temperature of the high-temperature flue gas in the central heat exchange tube is reduced, and the safe operation of the rotary kiln is ensured; 6. in order to ensure that the outside radiation heat of the rotary kiln body is low, except for a special-shaped interface, the kiln body is internally provided with refractory materials which are constructed by light bricks and heavy bricks in a layered way.

The rotary kiln for material calcination reduction treatment has the advantages of reliable rotary kiln body technology, high automation level and good stability, the internal heat type design can effectively utilize the heat energy of the flue gas generated by secondary incineration, the saturated activated carbon is regenerated with lower energy consumption, the regeneration utilization rate of the activated carbon can reach 81-92%, and the physicochemical index of the regenerated activated carbon reaches or approaches the new carbon standard.

The rotary kiln for calcining and reducing the materials has the advantages of continuous production, stable quality, good control, novel device structure, simple and convenient operation, less infrastructure investment, small equipment volume and reasonable design; B. the three stages of drying, roasting and activating are completed at one time; C. the micro negative pressure design avoids the leakage of harmful gas, and the operation is safe and reliable; D. the furnace body rotating device is a variable-frequency speed-regulating motor, is driven by an open gear, and has stable integral rotary working state and long service life; E. the activation temperature is higher than 800 ℃, after the equipment normally operates, the carbonized material can be activated by introducing activating steam without externally supplementing heat, new activated carbon is manufactured, and the whole operation process of regenerating the activated carbon can be automatically controlled; F. the hearth is poured by adopting a temperature-resistant, acid-resistant and alkali-resistant material or is built by adopting refractory bricks made of the same material and is divided into a heat insulation layer and a heat storage layer so as to ensure that the temperature of the outer wall of the furnace does not exceed 100 ℃; the furnace body is arranged and designed to have a certain inclination so as to ensure the uniform propulsion of the material transmission in the furnace and ensure that the furnace body has a smaller rotation vector; the hearth is arranged at a certain inclination, so that the material moves from the kiln head to the kiln tail under the action of gravity; stainless steel nails are used as internal fixed ground bolts and expansion jackets are arranged, so that the pouring strength of the hearth is ensured to adapt to the alternating thermal stress of the working state of the incinerator; G. the design adopts the high-temperature tail gas after secondary incineration as supplementary energy consumption, so that the operation cost can be greatly reduced.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims (5)

1. A rotary kiln for calcining and reducing materials is characterized in that: comprises a first concrete base (23), a second concrete base (24), a third concrete base (25), a kiln tail frame (13), a kiln head cover component (1) which is respectively arranged on the first concrete base (23), the second concrete base (24), the third concrete base (25) and the kiln tail frame (13), a tow wheel component (5), a transmission component (6), a driving motor (28), a supporting wheel blocking component (10) and a tail kiln cover (12), wherein the transmission component (6) is connected with the driving motor (28), a transverse feeding pipe (19) which is connected with the kiln head cover component (1), a feeding hole (20) which is arranged on the transverse feeding pipe (19), a feeding shaft (21) with spiral teeth which is arranged in the transverse feeding pipe (19), a speed reducer (18) which is connected with the feeding shaft (21) with the spiral teeth, and a kiln head cover component (1), The device comprises a tugboat assembly (5), a transmission assembly (6), a driving motor (28), a barrel assembly (4) connected with a tail kiln cover (12) and a heat exchange tube (7) arranged in the barrel assembly (4), a plurality of air inlets (30) arranged on the heat exchange tube (7), a first heat exchange tube air outlet (26) arranged on the barrel assembly (4) and matched with the heat exchange tube (7) for use, a second heat exchange tube air outlet (29), a discharge hole (22) arranged on the tail kiln cover (12), an air outlet (23-1) and a valve discharge pipe (27) connected with the discharge hole (22).

2. The rotary kiln for calcination and reduction of materials as claimed in claim 1, wherein: the rotary kiln for material calcination reduction treatment further comprises a kiln head sealing ring (2) and a kiln tail sealing ring (11) which are arranged at two ends of the barrel component (4) and are respectively matched with the kiln head cover component (1) and the kiln tail cover (12).

3. A rotary kiln for calcination and reduction treatment of a material according to claim 1 or 2, characterized in that: the rotary kiln for material calcination reduction treatment further comprises a steam jet outlet (3) which is arranged on the barrel component (4) and is positioned on one side of the first heat exchange tube air outlet (26) and one side of the second heat exchange tube air outlet (29).

4. The rotary kiln for calcination and reduction of materials as claimed in claim 3, wherein: the rotary kiln for material calcination reduction treatment further comprises a temperature measuring hole (15), a discharge box fire observation opening (14), an access hole (17) and a standby interface (16) which are arranged on the tail kiln hood (12).

5. The rotary kiln for calcination and reduction of materials as claimed in claim 4, wherein: the size of the access hole (17) is 500 mm.

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