CN217464467U - Reciprocating combined grate and reciprocating controllable grate furnace - Google Patents
Reciprocating combined grate and reciprocating controllable grate furnace Download PDFInfo
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- CN217464467U CN217464467U CN202221161981.4U CN202221161981U CN217464467U CN 217464467 U CN217464467 U CN 217464467U CN 202221161981 U CN202221161981 U CN 202221161981U CN 217464467 U CN217464467 U CN 217464467U
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Abstract
The utility model discloses a reciprocating combined grate and a reciprocating controllable grate furnace in the field of grate furnaces, wherein the reciprocating combined grate comprises grate groups arranged in a furnace shell, the grate groups are at least arranged in one group, and each grate group comprises a movable grate, a rotary grate and a fixed grate which are sequentially arranged from left to right and from high to low; the upper end surfaces of the moving grate, the rotary grate and the fixed grate are all planes, the right end surface of the rotary grate is an arc surface, and a first scraping strip extending downwards is fixedly arranged at the right end of the moving grate; the lower end of the first scraping strip is attached to the upper end surface of the rotary grate in the same group, and the arc surface of the rotary grate is attached to the left end surface of the fixed grate; the reciprocating combined grate also comprises a first driving mechanism for driving the movable grate to reciprocate horizontally and a second driving mechanism for driving the rotary grate to rotate around the center point of the circular arc surface in a reciprocating manner; can assist the high-temperature wind to overturn the materials, and avoids the material accumulation and material blockage caused by too long retention time of the materials.
Description
Technical Field
The utility model relates to a grate furnace field specifically, relates to a reciprocating type combination grate and reciprocating type controllable grate furnace.
Background
With the rapid development of urbanization in China, the outdoor landfill treatment of the household garbage can not meet the requirement of urban development due to the problems of large land occupation resource, long garbage degradation time, underground water resource pollution by penetrating fluid and the like. In recent years, green development is vigorously advocated in the country. And a resource-saving and environment-friendly society is built. The garbage incineration disposal mode, which can save land resources and make garbage disposal harmless, quantitative reduction and resource, is more and more widely applied.
The grate furnace is the most common treatment facility for waste incineration treatment and occupies 80 percent of the market share in China. The existing grate furnace is generally a stepped grate furnace, and materials on steps are blown by a fan to roll downwards step by step. However, in practice, materials on the leeward side of the ladder cannot be blown by wind, and the materials are easy to accumulate and block due to too long retention time.
Therefore, it is desirable to provide a reciprocating combined grate and a reciprocating controllable grate furnace to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reciprocating type combination grate and reciprocating type controllable grate stove can assist the high temperature wind upset material, avoid the material because too long accumulated material putty that causes in leeward district dwell time.
In order to achieve the above object, one aspect of the present invention provides a reciprocating combined grate, which comprises a grate group disposed in a furnace shell, wherein the grate group is at least provided in one group;
the fire grate group comprises a moving fire grate, a rotating fire grate and a fixed fire grate which are sequentially arranged from left to right and from high to low;
the upper end surfaces of the moving grate, the rotating grate and the fixed grate are all planes, the right end surface of the rotating grate is an outward convex arc surface, and a first scraping strip extending downwards is fixedly installed at the right end of the moving grate;
the lower end of the first scraping strip is attached to the upper end face of the rotary grate in the same group, and the arc face of the rotary grate is attached to the left end face of the fixed grate in the same group;
the reciprocating combined grate further comprises a first driving mechanism for driving the movable grate to reciprocate horizontally and a second driving mechanism for driving the rotary grate to rotate around the center point of the circular arc surface in a reciprocating mode, and the fixed grate is fixedly installed on the furnace shell.
Preferably, a second scraping strip extending downwards is fixedly installed at the right end of the fixed grate, and the lower end of the second scraping strip is attached to the upper end face of the movable grate in the right-side grate group.
Preferably, the first driving mechanism comprises a first motor fixedly installed outside the furnace shell, a gear is fixedly installed on an output shaft of the first motor, a rack is meshed with the gear, sliding plates capable of horizontally sliding left and right are fixedly connected to the front end and the rear end of the rack respectively, rolling shafts are installed on the left side and the right side of the lower portion of each sliding plate in the furnace shell respectively, a connecting rod is fixedly installed at the upper end of each sliding plate, and the movable grate is fixedly installed at the upper end of each connecting rod.
Preferably, a horizontal sliding groove is formed in one side, close to the furnace shell, of the sliding plate, and a constraint block in sliding fit with the sliding groove is fixedly installed on the furnace shell.
Preferably, the first motor is a servo motor.
Preferably, the second driving mechanism comprises a second motor installed outside the furnace shell, an output shaft of the second motor is fixedly connected with the rotary grate, and the axis of the output shaft of the second motor coincides with the circle center of the arc surface of the rotary grate.
Preferably, the second motor is a servo motor.
The utility model provides a reciprocating type controllable grate furnace, which comprises a furnace shell and the reciprocating type combined grate;
the upper end of the furnace shell is provided with a feeding hole for feeding and air inlet, and the right end of the furnace shell is provided with a discharging hole for discharging and air outlet;
the feeding hole corresponds to the moving grate positioned at the leftmost end, and the discharging hole corresponds to the fixed grate positioned at the rightmost end;
a groove is formed in the furnace wall on the left side of the furnace shell, and the upper end face of the groove is attached to the upper end face of the moving grate at the leftmost end;
the front end surface and the rear end surface of the movable grate, the rotary grate and the fixed grate are all attached to the inner wall of the furnace shell.
Preferably, the upper furnace wall of the furnace shell is an inclined furnace wall with a higher left side and a lower right side.
According to the technical scheme, when the device is used, the first driving mechanism and the second driving mechanism are started simultaneously, the first driving mechanism drives the movable grate to translate rightwards, the second driving mechanism drives the rotary grate to rotate clockwise, in the process that the movable grate moves rightwards and the rotary grate rotates clockwise, the movable grate moves rightwards relative to the rotary grate, the upper end face of the rotary grate is inclined towards the upper right side and becomes level gradually and inclined towards the lower right side, the material on the upper end face of the rotary grate can be pushed rightwards onto the fixed grate at the lower part by the right end of the movable grate, the material is overturned by high-temperature air in an auxiliary mode, and the material is dried more uniformly. Meanwhile, the moving grate can push out materials which cannot be blown by wind in an included angle between the right end face of the moving grate and the upper end face of the rotary grate, and the materials are prevented from being accumulated in the included angle between the moving grate and the rotary grate.
In the process of clockwise rotation of the rotary grate, the height of the material on the upper end surface of the rotary grate is gradually reduced, and the rotary grate inclines downwards to the right along with the rotation of the rotary grate, so that the rotary grate has a tendency of sliding to the right, and the rotary grate is convenient to move to push the material to the right; simultaneously, along with the rotation of the rotary grate, the arc surface on the right side of the rotary grate can gradually move to the lower side of the fixed grate, so that a leeward area at an included angle between the arc surface and the fixed grate disappears, high-temperature wind can blow away materials hidden in the position to the right, and stockpiling and material blocking are avoided.
Then the first driving mechanism drives the moving grate to move leftwards, the second driving mechanism drives the rotating grate to rotate anticlockwise, and the reciprocating operation is carried out in such a way, so that the materials are turned over by high-temperature air, and the materials are prevented from being accumulated and blocked due to too long retention time in a leeward area.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the same, and the arrows in the drawings indicate the direction of flow of the material and the hot air, and in which:
FIG. 1 is a schematic structural view of one embodiment of a reciprocating type controlled grate furnace of the present invention;
fig. 2 is a schematic top view of the reciprocating type controllable grate furnace of the present invention.
Description of the reference numerals
1-moving grate, 2-rotating grate, 3-fixed grate, 4-arc surface, 5-first scraping strip, 6-second scraping strip, 7-first motor, 8-gear, 9-rack, 10-sliding plate, 11-rolling shaft, 12-connecting rod, 13-second motor, 14-furnace shell, 15-feeding hole, 16-discharging hole, 17-casting material and 18-groove.
Detailed Description
The following description will be made in detail with reference to the accompanying drawings, wherein "left" and "right" are based on the viewing angle of fig. 1, and the direction of the discharge hole in fig. 1 is the right side. It should be understood that the description herein is provided for illustration and explanation of the invention and is not intended to limit the invention.
The utility model provides a reciprocating combined grate, which comprises a grate group arranged in a furnace shell 14, wherein at least one grate group is arranged;
the grate group comprises a moving grate 1, a rotating grate 2 and a fixed grate 3 which are sequentially arranged from left to right and from high to low;
the upper end surfaces of the moving grate 1, the rotary grate 2 and the fixed grate 3 are all planes, the right end surface of the rotary grate 2 is an outward convex arc surface 4, and a first scraping strip 5 extending downwards is fixedly arranged at the right end of the moving grate 1;
the lower end of the first scraping strip 5 is attached to the upper end surface of the rotary grate 2 in the same group, and the arc surface 4 of the rotary grate 2 is attached to the left end surface of the fixed grate 3 in the same group;
the reciprocating combined grate further comprises a first driving mechanism for driving the movable grate 1 to reciprocate horizontally and a second driving mechanism for driving the rotary grate 2 to rotate around the center point of the circular arc surface 4 in a reciprocating mode, and the fixed grate 3 is fixedly installed on the furnace shell 14.
When using this device, start first actuating mechanism and second actuating mechanism simultaneously, first actuating mechanism drives traveling grate 1 translation right, second actuating mechanism drives rotating grate 2 clockwise rotation, the lower terminal surface of first scraping strip 5 in this process laminates the up end of rotating grate 2 in the same group all the time, the left end face of fixed grate 3 in the same group of laminating all the time is laminated to the right side arc surface 4 of rotating grate 2, if there is multiunit grate group, a set of fixed grate 3 in the left side is located a set of traveling grate 1 top in right side, and fixed grate 3 laminates with traveling grate 1, avoid the material to drop in the clearance of adjacent grate.
In the process that the moving grate 1 moves rightwards and the rotating grate 2 rotates clockwise, the moving grate 1 moves rightwards relative to the rotating grate 2, the upper end face of the rotating grate 2 is inclined from the upper right side to the lower right side and gradually becomes horizontal, the upper end face of the rotating grate 2 is inclined towards the lower right side, the right end of the moving grate 1 can push materials on the upper end face of the rotating grate 2 to the lower fixed grate 3 rightwards, high-temperature air is assisted to overturn the materials, and the materials are dried more uniformly. Meanwhile, the moving grate 1 can push out the materials which cannot be blown by wind in the included angle between the right end surface of the moving grate 1 and the upper end surface of the rotating grate 2, so that the materials are prevented from being accumulated in the included angle between the moving grate 1 and the rotating grate 2. In the process of clockwise rotation of the rotary grate 2, the material height of the upper end surface of the rotary grate 2 is gradually reduced, and the rotary grate 2 inclines downwards to the right along with the rotation, so that the rotary grate has a tendency of sliding to the right, and the movable grate 1 is convenient to push the material to the right; simultaneously, along with the rotation of the rotary grate 2, the arc surface 4 on the right side of the rotary grate can gradually move to the lower part of the fixed grate 3, so that a leeward area at an included angle between the arc surface 4 and the fixed grate 3 disappears, high-temperature wind can blow away materials hidden in the position to the right, and stockpiling and material blocking are avoided. If there are a plurality of groups of fire grates, when the moving fire grate 1 moves leftwards, the upper fixed fire grate 3 can push the material on the moving fire grate 1 rightwards, when the moving fire grate 1 moves rightwards, the material on the moving fire grate can be driven to move rightwards relative to the fixed fire grate 3, the material originally in the lee area is separated from the lee area, and the material accumulation and material blockage are avoided.
Then the first driving mechanism drives the moving grate 1 to move leftwards, the second driving mechanism drives the rotating grate 2 to rotate anticlockwise, and the reciprocating operation is carried out in such a way, so that the materials are turned over by high-temperature air in an auxiliary manner, and the materials are prevented from being accumulated and blocked due to too long retention time in a leeward area.
In this embodiment, the right end of the fixed grate 3 is fixedly provided with the second scraping strip 6 extending downwards, the lower end of the second scraping strip 6 is attached to the upper end face of the moving grate 1 in the right side grate group, so that the whole lower end face of the fixed grate 3 is prevented from being attached to the upper end face of the moving grate 1 below, and the contact area is reduced. The lower ends of the first scraping strip 5 and the second scraping strip 6 are thin-walled.
In this embodiment, the first driving mechanism includes a first motor 7 fixedly installed outside the furnace casing 14, a gear 8 is fixedly installed on an output shaft of the first motor 7, a rack 9 is engaged with the gear 8, sliding plates 10 capable of horizontally sliding left and right are fixedly connected to front and rear ends of the rack 9, one roller 11 is installed on each of left and right sides below the sliding plate 10 in the furnace casing 14, a connecting rod 12 is fixedly installed on an upper end of the sliding plate 10, and the moving grate 1 is fixedly installed on an upper end of the connecting rod 12. The first motor 7 drives the gear 8 to rotate through the output shaft, the gear 8 drives the rack 9 to do translational motion, the rack 9 moves to drive the sliding plate 10 fixedly connected with the rack to move left and right on the rolling shaft 11, and further the movable fire grate 1 is driven to horizontally move left and right through the connecting rod 12, the sliding plate 10 can be provided with a plurality of connecting rods 12, and each connecting rod 12 can be connected with one movable fire grate 1. It should be noted that, because of the dead weight of the moving grate 1, the connecting rod 12, the sliding plate 10 and the rack 9, the rack 9 will not be jacked up by the gear 8 when rotating, and the sliding plate 10 can stably slide on the roller 11
In this embodiment, a horizontal sliding groove is disposed on one side of the sliding plate 10 close to the furnace shell 14, a constraint block in sliding fit with the sliding groove is fixedly mounted on the furnace shell 14, and the sliding groove is matched with the constraint block to further constrain the sliding plate 10 so that it can only slide left and right.
In this embodiment, the first motor 7 is a servo motor, which facilitates accurate control of the moving distance of the moving grate 1.
In this embodiment, the second driving mechanism includes a second motor 13 installed outside the furnace casing 14, an output shaft of the second motor 13 is fixedly connected to the rotating grate 2, and an axis of the output shaft of the second motor 13 coincides with a circle center of the arc surface 4 of the rotating grate 2, and distances from the rotating shaft to each point of the arc surface 4 are equal, so that the arc surface 4 is always attached to the left end surface of the fixed grate 3 in the same group in the rotating process of the rotating grate 2.
In this embodiment, the second motor 13 is a servo motor, which facilitates accurate control of the rotation angle of the rotary grate 2.
Another aspect of the present invention provides a reciprocating type controllable grate furnace, which comprises a furnace casing 14 and the reciprocating type combined grate; the furnace housing 14 comprises an outer steel material and an inner casting compound 17, the casting compound 17 being resistant to high temperatures in order to insulate the high temperatures in the furnace housing 14 from the outer steel material.
The upper end of the furnace shell 14 is provided with a feeding hole 15 for feeding and air intake, and the right end of the furnace shell 14 is provided with a discharging hole 16 for discharging and air outlet;
the feed inlet 15 corresponds to the moving grate 1 positioned at the leftmost end, and the discharge outlet 16 corresponds to the fixed grate 3 positioned at the rightmost end;
a groove 18 is formed in the left furnace wall of the furnace shell 14, and the upper end face of the groove 18 is attached to the upper end face of the leftmost moving grate 1;
the front and back end surfaces of the movable grate 1, the rotary grate 2 and the fixed grate 3 are all attached to the inner wall of the furnace shell 14.
The materials are put into the furnace shell 14 from the feeding hole 15 and fall on the moving grate 1 at the leftmost end, because different grates in the same grate group are jointed, the fixed grates 3 and the moving grates 1 of the adjacent grate groups are jointed, and the front end surfaces and the rear end surfaces of the moving grates 1, the rotating grates 2 and the fixed grates 3 are jointed with the inner wall of the furnace shell 14, a closed space is formed above the grate group and the furnace shell 14, and the materials are prevented from leaking from the grate group. The groove 18 is formed in the left side of the furnace shell 14, so that when the moving grate 1 at the leftmost end moves to the right, the upper end surface of the moving grate 1 is always attached to the upper wall of the groove 18, and materials are prevented from falling down from the left side of the furnace shell 14 when the moving grate 1 at the leftmost end moves to the right. The material in the furnace casing 14 will slowly roll down to the right with the blowing of the high temperature wind and the reciprocating motion of the fire grate group, and finally leave the furnace casing 14 from the discharge hole 16. Since the furnace casing 14 has only one inlet port 15 and one outlet port 16, the flow direction of the high temperature air must be from the inlet port 15 to the outlet port 16.
In this embodiment, the upper furnace wall of the furnace casing 14 is an inclined furnace wall with a high left and a low right, and the direction of the inclined furnace wall is the same as the arrangement direction of the grate group, so that the high-temperature air can better blow the material.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (9)
1. A reciprocating combined grate is characterized by comprising a grate group arranged in a furnace shell (14), wherein at least one grate group is arranged;
the fire grate group comprises a moving fire grate (1), a rotating fire grate (2) and a fixed fire grate (3) which are sequentially arranged from left to right and from high to low;
the upper end surfaces of the moving grate (1), the rotating grate (2) and the fixed grate (3) are planes, the right end surface of the rotating grate (2) is a convex arc surface (4), and a first scraping strip (5) extending downwards is fixedly installed at the right end of the moving grate (1);
the lower end of the first scraping strip (5) is attached to the upper end face of the rotary grate (2) in the same group, and the arc face (4) of the rotary grate (2) is attached to the left end face of the fixed grate (3) in the same group;
the reciprocating combined grate further comprises a first driving mechanism for driving the movable grate (1) to reciprocate horizontally and a second driving mechanism for driving the rotary grate (2) to rotate around the center of the circular arc surface (4) in a reciprocating mode, and the fixed grate (3) is fixedly installed on the furnace shell (14).
2. The reciprocating combined grate according to claim 1, characterized in that a second scraping bar (6) extending downwards is fixedly installed at the right end of the fixed grate (3), and the lower end of the second scraping bar (6) is attached to the upper end surface of the moving grate (1) in the grate group at the right side.
3. The reciprocating type combined grate according to claim 1, wherein the first driving mechanism comprises a first motor (7) fixedly installed outside the furnace shell (14), a gear (8) is fixedly installed on an output shaft of the first motor (7), a rack (9) is meshed with the gear (8), sliding plates (10) capable of horizontally sliding left and right are fixedly connected to the front end and the rear end of the rack (9), rolling shafts (11) are respectively installed on the left side and the right side below the sliding plates (10) in the furnace shell (14), a connecting rod (12) is fixedly installed at the upper end of each sliding plate (10), and the movable grate (1) is fixedly installed at the upper end of each connecting rod (12).
4. The reciprocating grate assembly according to claim 3 wherein a horizontal chute is formed in a side of said slide plate (10) adjacent to said furnace housing (14), and a restraint block slidably engaged with said chute is fixedly mounted on said furnace housing (14).
5. The reciprocating grate assembly of claim 3 wherein the first motor (7) is a servo motor.
6. The reciprocating combined grate according to claim 1, wherein the second driving mechanism comprises a second motor (13) installed outside the furnace casing (14), an output shaft of the second motor (13) is fixedly connected with the rotary grate (2), and an axis of the output shaft of the second motor (13) is overlapped with a circle center of the arc surface (4) of the rotary grate (2).
7. The reciprocating grate assembly of claim 6 wherein the second motor (13) is a servo motor.
8. A reciprocating controlled grate furnace, characterized in that it comprises a furnace housing (14) and a reciprocating combined grate according to any one of claims 1-7;
the upper end of the furnace shell (14) is provided with a feeding hole (15) for feeding and air intake, and the right end of the furnace shell (14) is provided with a discharging hole (16) for discharging and air outlet;
the feeding hole (15) corresponds to the moving grate (1) positioned at the leftmost end, and the discharging hole (16) corresponds to the fixed grate (3) positioned at the rightmost end;
a groove (18) is formed in the wall of the left side of the furnace shell (14), and the upper end face of the groove (18) is attached to the upper end face of the moving grate (1) at the leftmost end;
the front end surface and the rear end surface of the movable grate (1), the rotary grate (2) and the fixed grate (3) are attached to the inner wall of the furnace shell (14).
9. The reciprocating controllable grate furnace according to claim 8, characterized in that the upper furnace wall of the furnace housing (14) is an inclined furnace wall with a high left and a low right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221161981.4U CN217464467U (en) | 2022-05-13 | 2022-05-13 | Reciprocating combined grate and reciprocating controllable grate furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221161981.4U CN217464467U (en) | 2022-05-13 | 2022-05-13 | Reciprocating combined grate and reciprocating controllable grate furnace |
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| Publication Number | Publication Date |
|---|---|
| CN217464467U true CN217464467U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221161981.4U Active CN217464467U (en) | 2022-05-13 | 2022-05-13 | Reciprocating combined grate and reciprocating controllable grate furnace |
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| CN (1) | CN217464467U (en) |
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- 2022-05-13 CN CN202221161981.4U patent/CN217464467U/en active Active
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