CN111283146A

CN111283146A - Mold device for producing double-helix hollowed-out slag discharge screw

Info

Publication number: CN111283146A
Application number: CN202010086014.5A
Authority: CN
Inventors: 欧阳志尧; 张友贵
Original assignee: Chongqing Chuangxing Thermal Energy Technology Co ltd
Current assignee: Chongqing Chuangxing Thermal Energy Technology Co ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-06-16
Anticipated expiration: 2040-02-11
Also published as: CN111283146B

Abstract

The invention discloses a die device for producing a double-helix hollowed-out slag-discharging screw rod, which comprises an upper die cover plate and a lower die cover plate which can be separated from each other up and down, wherein a left-side helical forming plate, a hollow auxiliary forming screw rod and a right-side helical forming plate are respectively arranged between the upper die cover plate and the lower die cover plate in a matched manner. In the production process, liquid metal water is only poured into the upper die cover plate and the lower die cover plate, and then the screw can be directly produced through cooling, so that compared with the traditional welding mode, the production efficiency is improved by more than 10 times, the cost is lower, and the consistency of the product quality can be ensured; the hollow screw can be easily manufactured, and the screw can be ensured to be in a hollow state, so that the temperature of the screw is not too high in practical use, coking is not easy to generate, and the service life of the screw can be prolonged to more than 2 years.

Description

Mold device for producing double-helix hollowed-out slag discharge screw

Technical Field

The invention relates to the technical field of combustor equipment, in particular to a die device for producing a double-helix hollowed-out slag-discharging screw rod.

Background

At present, in order to deal with the increasingly prominent energy crisis and the severe environmental pollution and climate change reality, the development and utilization of biomass energy are highly emphasized in various countries in the world. In some developed countries in the west, biomass energy has become widely available. In China, with the economic development and the continuous increase of energy demand, the biomass energy is developed, and the proportion of the biomass energy in an energy structure is improved. China is also pushing the development of the biomass energy industry vigorously, and relevant encouragement supporting policies are developed.

Biomass fuel is widely used for fields such as heating, hot water, industry drying as novel fuel, wherein biomass burner's main theory of operation is sent the living beings pellet fuel in the feed bin to furnace in and burns, carries out combustion-supporting through the air-blower, later lets the sediment screw rod rotation of arranging in the control furnace, and the residue after will burning is discharged, so reciprocal just can realize cycle work. The slag discharging screw plays a role in discharging residues, and the temperature in the combustion chamber can generally reach about 800 ℃, so that the requirement on the slag discharging screw is high, and the slag discharging screw is used as an important part in the biomass combustor. Because the outer surface of the slag discharging screw is processed with a spiral, the slag discharging screw is produced by a welding mode in the prior art, and the screw produced by adopting the welding mode still has the following two problems: (1) the screw is produced in a welding mode, workers are required to fix the screw through a plurality of welding points, and the screw is welded on the surface of the screw in a rotating mode, so that the screw needs to be continuously rotated during welding, the operation is troublesome, and more labor cost is consumed; (2) the working environment temperature of the slag discharge screw is approximately 600-; (3) the screw produced by using the welding mode cannot ensure the consistency of the quality of the screw due to the difference of individual parts, particularly when the screw is spirally welded on the surface of the screw, and is not beneficial to large-scale production; (4) the screw produced by welding is inconvenient to process ventilation holes on the surfaces of the screw and the spiral, so that the spiral used by the screw in the prior art is in a solid state; (5) most of slag discharging screws in the prior art are solid screws, the surface of each screw is in a solid state, the slag discharging screws are different from common screws, the slag discharging screws are placed in a hearth of a combustion machine, fresh air sent by an air blower is sent into the hearth through the insides of the slag discharging screws, the slag discharging screws are required to be made to be hollow, the surface of each screw is required to be processed to be spiral, a hollow structure is firstly processed by using a numerical control machine, and then the spiral is welded, and the mode is very troublesome.

Disclosure of Invention

The invention aims to solve the problem of providing a die device for producing a double-helix hollowed-out deslagging screw rod, which has the advantages of simple structure, reasonable design, high production efficiency, stable quality and lower manufacturing cost.

In order to solve the technical problems, the invention adopts the technical scheme that: a die device for producing a double-helix hollowed-out slag-discharging screw rod comprises an upper die cover plate and a lower die cover plate which can be separated from each other from top to bottom, wherein a left-side spiral forming plate, a hollow auxiliary forming screw rod and a right-side spiral forming plate are respectively arranged between the upper die cover plate and the lower die cover plate in a matched manner, a plurality of first cambered surface forming blocks are symmetrically arranged on the inner walls of the left-side spiral forming plate and the right-side spiral forming plate, a plurality of first spiral gaps are respectively formed between every two adjacent first cambered surface forming blocks, a plurality of second cambered surface forming blocks are symmetrically arranged on the inner walls of the upper die cover plate and the lower die cover plate, a plurality of second spiral gaps are respectively formed between every two adjacent second cambered surface forming blocks, the first cambered surface forming blocks on the left side and the right side and the second cambered surface forming blocks on the upper side and the, the hollow auxiliary molding screw is embedded in the cylinder.

Preferably, foretell a mold device for producing two spiral fretwork row sediment screw rod, wherein the left and right sides processing has the first protruding post of a plurality of on the inner wall of first cambered surface shaping piece, lie in on left side spiral forming plate, the right side spiral forming plate processing has the protruding post of a plurality of second on the inner wall of first spiral clearance department.

Preferably, the mold device for producing the double-helix hollowed-out deslagging screw rod is characterized in that a plurality of third protruding columns are processed on the inner walls of the second cambered surface forming blocks on the upper side and the lower side, and a plurality of fourth protruding columns are processed on the inner walls of the second spiral gaps on the upper mold cover plate and the lower mold cover plate.

Preferably, in the above mold apparatus for producing a double-helix hollowed-out deslagging screw, strip-shaped grooves matched with the left-side spiral forming plate and the right-side spiral forming plate are processed on the inner walls of the upper mold cover plate and the lower mold cover plate.

Preferably, foretell a mold device for producing double helix fretwork row sediment screw rod, wherein both ends all process mated spacing protruding piece about hollow supplementary forming screw rod, all process the recess in pairs on the inner wall of mould apron, bed die apron, during the use hollow supplementary forming screw rod passes through spacing protruding piece card is gone into in the recess, processing has the through-hole between mould apron, the bed die apron.

Preferably, the mold device for producing the double-helix hollowed-out deslagging screw rod is characterized in that a first limiting helix and a second limiting helix which are arranged in pair are respectively processed on the outer wall of the hollow auxiliary forming screw rod.

Preferably, the above mold device for producing the double-helix hollowed-out deslagging screw rod is characterized in that the upper mold cover plate, the lower mold cover plate, the left-side spiral forming plate, the hollow auxiliary forming screw rod and the right-side spiral forming plate are all made of high-temperature-resistant precoated sand.

The invention has the advantages and beneficial effects that: (1) according to the scheme, the upper die cover plate, the lower die cover plate, the left spiral forming plate, the hollow auxiliary forming screw and the right spiral forming plate are arranged, liquid metal water is only required to be poured into the upper die cover plate and the lower die cover plate during production, and then the screw can be directly produced through cooling; (2) the screw rod formed by the mold in one step has smooth joint with the screw, so that welding scars can not be generated, the screw rod is not easy to coke when in use, the service life of a product is longer, and frequent manual cleaning is not needed; (3) a plurality of protruding columns with different sizes are arranged on the inner sides of the upper die cover plate, the lower die cover plate, the left spiral forming plate and the right spiral forming plate, so that a plurality of vent holes can be easily machined in the screw rod and the spiral, and the vent holes are difficult to machine in a traditional mode; (4) through adopting the mould structure disclosed in this scheme, can be easier hollow screw rod of manufacturing, and can guarantee that the spiral also is hollow state, this is the core technology point of this patent, the drawback of carrying out production through the welding mode among the prior art has been solved completely, the screw rod of producing through this kind of mode has increased the area of ventilative by a wide margin, because the fresh air that the air-blower sent is cold wind, the temperature that can guarantee the screw rod when in-service use like this is not too high, not only be difficult for producing the coking, can also make the life of screw rod improve more than 2 years.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the present invention showing the structure of the cover plate of the upper mold opening;

FIG. 4 is a left side view of the present invention with the upper and lower mold cover plates disassembled;

FIG. 5 is a schematic view of a portion of the structure of the present invention;

FIG. 6 is a schematic view of the structure of the left spiral forming plate of the present invention;

FIG. 7 is a schematic structural view of the hollow-out type slag discharging screw of the present invention;

FIG. 8 is a schematic view of the construction of the hollow auxiliary molding screw of the present invention;

FIG. 9 is a schematic view of the structure of the cover plate of the lower mold in the present invention.

In the figure: 1. an upper mold cover plate; 2. a left spiral forming plate; 21. a first cambered surface forming block; 22. a first helical gap; 23. a first raised column; 24. a second raised column; 3. a hollow slag discharge screw; 31. a first hollowed-out spiral; 32. a second hollowed-out spiral; 33. a hollow through hole; 34. a first vent hole; 35. a second vent hole; 4. a right spiral forming plate; 5. a hollow auxiliary forming screw; 51. a first limiting screw; 52. a second limiting screw; 53. a limiting convex block; 6. a lower die cover plate; 61. a second cambered surface forming block; 62. a second helical gap; 63. a third raised column; 64. a fourth raised column; 65. a strip-shaped groove; 66. a groove; 7. and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly and clearly understood, the technical solutions in the embodiments of the present invention will be described below in detail and completely with reference to the accompanying drawings and the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a mold device for producing double helix hollowed-out slag-discharging screw rod, including upper mold cover plate 1 and lower mold cover plate 6 which are separable from each other from top to bottom, left side helix forming plate 2, hollow auxiliary forming screw rod 5 and right side helix forming plate 4 are respectively installed between upper mold cover plate 1 and lower mold cover plate 6 in a matching manner, and strip-shaped grooves 65 which are matched with left side helix forming plate 2 and right side helix forming plate 4 are all processed on the inner walls of upper mold cover plate 1 and lower mold cover plate 6. Compared with the traditional welding mode, the production efficiency is improved by more than 10 times, the cost is lower, and the consistency of the product quality can be ensured; the screw rod formed by the mold in one step has smooth joint with the screw, no welding scar is generated, and the screw rod is not easy to coke when in use, so that the service life of the product is longer, and the frequent cleaning by manpower is not needed.

As shown in fig. 3, 4, 5, 8 and 9, the paired limit protrusions 53 are formed at the left and right ends of the hollow auxiliary forming screw 5, the grooves 66 are formed in the inner walls of the upper die cover plate 1 and the lower die cover plate 6 in pairs, the hollow auxiliary forming screw 5 is clamped in the groove 66 through the limit protrusions 53 when in use, and the through hole 7 is formed between the upper die cover plate 1 and the lower die cover plate 6. The outer wall of the hollow auxiliary forming screw 5 is respectively provided with a first limiting screw 51 and a second limiting screw 52 which are arranged in pairs. The upper die cover plate 1, the lower die cover plate 6, the left spiral forming plate 2, the hollow auxiliary forming screw rod 5 and the right spiral forming plate 4 are all made of high-temperature-resistant precoated sand.

As shown in fig. 2, fig. 6 and fig. 9, the equal symmetry is provided with the first cambered surface shaping piece 21 of a plurality of on the inner wall of left side spiral shaping plate 2 and right side spiral shaping plate 4, a plurality of first spiral clearance 22 has all been seted up between the adjacent first cambered surface shaping piece 21, go up the mould apron 1, it is provided with a plurality of second cambered surface shaping piece 61 all to symmetry on the inner wall of lower mould apron 6, the spiral clearance 62 of a plurality of second has all been seted up between the adjacent second cambered surface shaping piece 61, the first cambered surface shaping piece 21 of the left and right sides closely pieces together into a drum with the second cambered surface shaping piece 61 of upper and lower both sides, hollow auxiliary forming screw 5 imbeds in the drum.

As shown in fig. 2, 6 and 9, a plurality of first protruding columns 23 are processed on the inner walls of the first arc-shaped forming blocks 21 on the left and right sides, and a plurality of second protruding columns 24 are processed on the inner walls of the first spiral gaps 22 on the left spiral forming plate 2 and the right spiral forming plate 4. A plurality of third protruding columns 63 are processed on the inner walls of the second cambered surface forming blocks 61 on the upper side and the lower side, and a plurality of fourth protruding columns 64 are processed on the inner walls of the second spiral gaps 62 on the upper die cover plate 1 and the lower die cover plate 6. Through the inboard that sets up a plurality of not equidimensions of last mould apron 1, bed die apron 6, left side spiral forming plate 2 and right side spiral forming plate 4 protruding post, just so can be relatively easy process out a plurality of ventilation hole on screw rod and spiral, and adopt traditional mode to process out ventilation hole comparative difficulty like this.

As shown in fig. 1, fig. 2 and fig. 7, during production, only liquid metal water is poured into the upper mold cover plate 1 and the lower mold cover plate 6, and then the hollow slag discharging screw 3 can be directly produced through cooling, a hollow through hole 33 is arranged inside the hollow slag discharging screw 3, a first hollow spiral 31 and a second hollow spiral 32 are respectively formed on the outer wall of the hollow slag discharging screw 3, wherein a plurality of first vent holes 34 are formed on the outer wall of the hollow slag discharging screw 3, a plurality of second vent holes 35 are formed on the outer walls of the first hollow spiral 31 and the second hollow spiral 32, and the hollow auxiliary forming screw 5 is formed inside the hollow slag discharging screw 3, so that the hollow slag discharging screw 3 is taken out in a rotating manner after production is completed. Through adopting the mould structure disclosed in this scheme, can be easier hollow screw rod of manufacturing, and can guarantee that the spiral also is hollow state, this is the core technology point of this patent, the drawback of carrying out production through the welding mode among the prior art has been solved completely, the screw rod of producing through this kind of mode has increased the area of ventilative by a wide margin, because the fresh air that the air-blower sent is cold wind, the temperature that can guarantee the screw rod when in-service use like this is not too high, not only be difficult for producing the coking, can also make the life of screw rod improve more than 2 years.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

It should be noted that the standard components used in the present invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the drawings, the specific connection manner of each part adopts the conventional means of bolt, rivet, welding, etc. mature in the prior art, the machines, parts and equipment all adopt the conventional models in the prior art, and the inventor does not need to describe in detail here.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a mold device for producing two spiral fretwork row sediment screw rod which characterized in that: including separable upper die cover board (1) and lower die cover board (6) from top to bottom, upper die cover board (1) with cooperation is installed respectively between lower die cover board (6) left side spiral forming plate (2), hollow supplementary shaping screw rod (5) and right side spiral forming plate (4), equal symmetry is provided with the first cambered surface of a plurality of forming block (21) on the inner wall of left side spiral forming plate (2), right side spiral forming plate (4), and is adjacent a plurality of first spiral clearance (22) have all been seted up between first cambered surface forming block (21), equal symmetry is provided with a plurality of second cambered surface forming block (61) on the inner wall of upper die cover board (1), lower die cover board (6), and is adjacent all seted up the spiral clearance of a plurality of second (62) between second cambered surface forming block (61), the left and right sides first cambered surface forming block (21) and upper and lower both sides second cambered surface forming block (61) closely piece together one A cylinder in which the hollow auxiliary forming screw (5) is embedded.

2. The mold device for producing the double-helix hollowed-out deslagging screw rod according to claim 1, characterized in that: the left and right sides processing has the first protruding post of a plurality of (23) on the inner wall of first cambered surface shaping piece (21), lie in on left side spiral forming plate (2), right side spiral forming plate (4) processing has protruding post of a plurality of second (24) on the inner wall of first spiral clearance (22) department.

3. The mold device for producing the double-helix hollowed-out deslagging screw rod according to claim 1, characterized in that: a plurality of third protruding columns (63) are processed on the inner walls of the second cambered surface forming blocks (61) on the upper side and the lower side, and a plurality of fourth protruding columns (64) are processed on the inner walls of the second spiral gaps (62) on the upper die cover plate (1) and the lower die cover plate (6).

4. The mold device for producing the double-helix hollowed-out deslagging screw rod according to claim 1, characterized in that: all process on the inner wall of going up mould apron (1), bed die apron (6) have with strip groove (65) that left side spiral forming plate (2), right side spiral forming plate (4) agree with mutually.

5. The mold device for producing the double-helix hollowed-out deslagging screw rod according to claim 1, characterized in that: both ends all are processed and have mated spacing protruding piece (53) about hollow supplementary forming screw (5), all process recess (66) in pairs on the inner wall of upper die cover plate (1), bed die cover plate (6), during the use hollow supplementary forming screw (5) are passed through spacing protruding piece (53) card is gone into in recess (66), processing has through-hole (7) between upper die cover plate (1), bed die cover plate (6).

6. The mold device for producing the double-helix hollowed-out deslagging screw rod of claim 5, wherein: the outer wall of the hollow auxiliary forming screw rod (5) is respectively provided with a first limiting screw (51) and a second limiting screw (52) which are arranged in pairs.

7. The mold device for producing the double-helix hollowed-out deslagging screw rod of claim 6, wherein: the upper die cover plate (1), the lower die cover plate (6), the left spiral forming plate (2), the hollow auxiliary forming screw (5) and the right spiral forming plate (4) are all made of high-temperature-resistant precoated sand.