Assembled wear-resistant ring and atomizing disk including the same

Abstract

The invention discloses an assembled wear-resistant ring and an atomizing disk including the wear-resistant ring. The assembled wear-resistant ring includes a plurality of wear-resistant sheets distributed along the circumferential direction, and the plurality of wear-resistant sheets form an annular structure. Both sides of each wear-resistant sheet are provided with semi-enclosed grooves; the semi-enclosed grooves between two adjacent wear-resistant sheets are combined into a mounting groove for accommodating the end of a guide column; the atomizing disk includes an upper disk, a lower disk, a guide column, and an assembled wear-resistant ring. The assembled wear-resistant ring is divided into an upper wear-resistant ring and a lower wear-resistant ring. The wear-resistant sheet in the upper wear-resistant ring is an upper wear-resistant sheet, and the wear-resistant sheet in the lower wear-resistant ring is a lower wear-resistant sheet; the upper wear-resistant ring is arranged at the lower part of the upper disk, and the lower wear-resistant ring is arranged at the upper part of the lower disk. The upper part of the guide column is embedded in the mounting groove between the two adjacent upper wear-resistant sheets, and the lower part of the guide column is embedded in the mounting groove between the two adjacent lower wear-resistant sheets. The assembled wear-resistant ring of the invention can prevent the atomizing disk from wearing at the atomizing outlet, and the wear-resistant sheet is easy to process and has low cost.

Description

Technical Field

[0001] The invention relates to atomization equipment, in particular to an assembled wear-resistant ring and an atomization disk comprising the wear-resistant ring. Background Art

[0002] Waste incineration plants often use the rotary spray method to desulfurize flue gas. The key to the rotary spray method is to make the lime slurry as an absorbent form a droplet state, and then contact the flue gas for desulfurization. The core component of the rotary spray method is the atomizer disc. At present, the atomizer disc is made of Hastelloy material with high hardness and good corrosion resistance, but the life is still short, and after the atomizer disc is worn out, it is difficult to repair and the cost of replacement is relatively high.

[0003] In order to solve the above problems, the invention patent with application publication number CN 103657905A discloses an atomizing disk dedicated to a rotary atomizer, comprising a spray distribution disk, a top disk, and a distribution block, wherein the distribution blocks are evenly distributed between the annular surfaces formed by the spray distribution disk and the top disk, and characterized in that: it also includes a wear-resistant sheet, and the same annular grooves are respectively opened between the corresponding surfaces of the spray distribution disk and the top disk, the wear-resistant sheet is a fan-shaped structure, and the outer end surface of the wear-resistant sheet is opened with a mounting groove, and the upper and lower end surfaces of each of the distribution blocks are respectively embedded in the corresponding mounting grooves of the wear-resistant sheets, and after the installation is completed, the upper and lower wear-resistant sheets are respectively combined to form an annular structure and embedded in the annular grooves of the spray distribution disk and the top disk, and the fasteners respectively penetrate the spray distribution disk, the wear-resistant sheet, the distribution block, the wear-resistant sheet, and the top disk in sequence to form an overall fastening, and the materials of the wear-resistant sheet and the distribution block are both cemented carbide. The atomizer disc is provided with an annular wear-resistant structure between the upper and lower ends of the distribution block and the spray distribution disc and the top disc, and the wear-resistant structure is composed of a plurality of fan-shaped wear-resistant rings, so that the annular wear-resistant structure separates the lime slurry from the spray distribution disc and the top disc, thereby avoiding direct wear of the lime slurry on the spray distribution disc and the top disc, and prolonging the service life of the atomizer disc. Moreover, the wear-resistant ring is composed of evenly distributed wear-resistant sheets, so after wear occurs, it is easy to disassemble and repair, and the maintenance cost is reduced. However, the high-speed enhanced atomizer disc still has the following problems:

[0004] 1. The top and bottom of each distribution block of the atomizing disk of the rotary atomizer correspond to a wear-resistant sheet, and the atomizing outlet is composed of two adjacent distribution blocks and two upper and lower wear-resistant sheets, which results in the formation of two upper and lower radially extending splicing seams at the atomizing outlet. Under the action of centrifugal force, the lime slurry is discharged radially outward at high speed. The high-speed moving lime slurry continuously flushes the radially extending splicing gap at the atomizing outlet, causing serious wear at the splicing gap of the upper and lower disks, affecting the service life.

[0005] 2. The top and bottom of each distribution block of the atomizing disk of the rotary atomizer correspond to a wear-resistant sheet, and the outer end surface of the wear-resistant sheet is provided with a mounting groove for accommodating the distribution block. The mounting groove is a blind hole sunken downward on the surface of the wear-resistant sheet. When processing the mounting groove, due to the very high hardness of the wear-resistant sheet, a grinding method with a small single feed amount is usually adopted for processing. During processing, when the tool feeds from top to bottom, the entire bottom plane area of ​​the tool contacts the wear-resistant sheet at the same time. At the moment of contact, the cutting force suddenly increases, which can easily cause chipping. On the one hand, the stability requirements of the machine tool are very high, so it is necessary to use an expensive and highly stable machine tool for processing. Ordinary machine tools are not stable enough, and a slight vibration of the machine tool will cause chipping. On the other hand, the requirements for the tool are also high, and it is necessary to use an expensive tool, which makes the processing of the wear-resistant sheet difficult and the cost very high, and there are also safety hazards. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an assembled wear-resistant ring, which can effectively prevent the atomizing disk from wearing at the atomizing outlet, and the wear-resistant sheet is easy to process and has low cost.

[0007] Another object of the present invention is to provide an atomizing disk comprising the above-mentioned assembled wear-resistant ring.

[0008] The technical solution of the present invention to solve the above technical problems is:

[0009] An assembled wear-resistant ring comprises a plurality of wear-resistant plates distributed along a circumferential direction, wherein the plurality of wear-resistant plates are spliced ​​in sequence to form an annular structure, and is characterized in that semi-closed grooves are provided on both sides of each wear-resistant plate, and the semi-closed grooves form an open structure at the side of the wear-resistant plate; the semi-closed grooves between two adjacent wear-resistant plates are combined together to form an installation groove for accommodating the end of a guide column.

[0010] The working principle of the above-mentioned assembled wear-resistant ring is:

[0011] Since both sides of each wear-resistant sheet are provided with semi-enclosed grooves, the semi-enclosed grooves form an open structure at the side of the wear-resistant sheet; the semi-enclosed grooves between two adjacent wear-resistant sheets are combined to form a mounting groove for accommodating the end of the guide column, that is, the joint seam of the two adjacent wear-resistant sheets is located at the midline position of the guide column. Therefore, after the wear-resistant ring of the present invention is installed on the atomizing disk, there is no joint seam in the atomizing port formed by the two adjacent guide columns and the upper and lower wear-resistant sheets. In the process of high-speed discharge of lime slurry from the atomizing port, the closed atomizing port isolates the lime slurry from the upper plate and the lower plate, thereby avoiding the lime slurry from affecting the upper plate and the lower plate during the atomizing process. The wear at the atomization port is reduced, and the service life of the atomizing disk is extended; at the same time, the hardness of the wear-resistant sheet is very high. By setting the semi-closed groove, when the tool is processed, the tool enters from both sides of the wear-resistant sheet, and the feed amount is controlled to increase gradually from zero to a certain amount, so that the force process of the tool is also increased gradually from zero to a certain amount, thereby avoiding the situation where the tool breaks due to sudden force. On the one hand, the requirements for the stability of the machine tool are reduced, and the processing can be completed by an ordinary machine tool, which reduces the equipment cost and the performance requirements of the tool, thereby greatly reducing the production cost and eliminating the safety hazards in the production process.

[0012] An atomizing disk, characterized in that it comprises an upper disk, a lower disk, a guide column uniformly distributed between the upper disk and the lower disk along the circumferential direction, and the spliced ​​wear-resistant ring; the spliced ​​wear-resistant ring is divided into an upper wear-resistant ring and a lower wear-resistant ring, the wear-resistant sheet in the upper wear-resistant ring is an upper wear-resistant sheet, and the wear-resistant sheet in the lower wear-resistant ring is a lower wear-resistant sheet; the upper wear-resistant ring is arranged at the lower part of the upper disk, and the lower wear-resistant ring is arranged at the upper part of the lower disk, the upper part of the guide column is embedded in the mounting groove between two adjacent upper wear-resistant sheets, and the lower part of the guide column is embedded in the mounting groove between two adjacent lower wear-resistant sheets.

[0013] The working principle of the above-mentioned atomizing disc is:

[0014] The lime slurry enters from the feed port in the middle of the atomizing disk, and the atomizing disk rotates at high speed; the lime slurry entering the atomizing disk diffuses to the upper surface of the lower disk, and the centrifugal force generated by the high-speed rotating atomizing disk acts on the lime slurry, so that the lime slurry is discharged from the atomizing port formed by two adjacent guide columns and the upper wear-resistant sheet and the lower wear-resistant sheet, thereby forming a uniform layer of mist around the atomizing disk; since each wear-resistant sheet is provided with a semi-enclosed groove on both sides, the semi-enclosed groove forms an open structure at the side of the wear-resistant sheet; the semi-enclosed grooves between two adjacent wear-resistant sheets are combined to form an installation groove for accommodating the end of the guide column, that is, the joint seam of the two adjacent wear-resistant sheets is located at the midline position of the guide column, so After the wear-resistant ring of the present invention is installed on the atomizing disk, there is no joint seam in the atomizing port formed by the two adjacent guide columns and the upper and lower wear-resistant plates. In the process of high-speed discharge of lime slurry from the atomizing port, the closed atomizing port isolates the lime slurry from the upper plate and the lower plate, thereby avoiding the wear of the upper plate and the lower plate at the atomizing port caused by the lime slurry, thereby extending the service life of the atomizing disk; in addition, when the high-speed moving lime slurry hits the inner end face of the guide column and recoils back, the lime slurry impacts the upper wear-resistant plate and the lower wear-resistant plate, that is, the upper wear-resistant plate and the lower wear-resistant plate avoid the wear of the upper plate and the lower plate caused by the reverse movement when the lime slurry hits the end face of the guide block, thereby improving the service life of the atomizing disk.

[0015] According to a preferred embodiment of the present invention, an upper groove for accommodating the upper wear-resistant ring is provided at the bottom of the upper plate, and a lower groove for accommodating the lower wear-resistant ring is provided at the top of the lower plate; wherein the upper plate comprises an upper plate outer ring portion and an upper plate inner ring portion arranged on the upper plate outer ring portion, an open groove is provided at the bottom of the upper plate outer ring portion, a raised step is provided at the bottom of the outer circular side surface of the upper plate inner ring portion, and the open groove, the outer circular side surface of the upper plate inner ring portion and the top surface of the raised step constitute the upper groove.

[0016] In a preferred embodiment of the present invention, the inner end surface of the guide column is a semicircular surface, and the contour of the outer end surface of the guide column is a section of an arc or a straight line; both sides and the inner end surface of the guide column are provided with guide grooves.

[0017] Preferably, a mounting hole is provided on the guide column, and the mounting hole is centrally arranged on the guide column.

[0018] According to a preferred embodiment of the present invention, the inner end surface and the outer end surface of the guide column are both semicircular surfaces, and guide grooves are provided on both sides of the guide column.

[0019] Preferably, the guide grooves on both sides are arranged in parallel.

[0020] Preferably, the guide groove includes a first guide surface and a second guide surface, wherein the second guide surface on one side is inclined toward the second guide surface on the other side along the direction of the inner end surface of the guide column; the first guide surface is arranged between the inner end surface of the guide column and the second guide surface, and is an arc surface.

[0021] Preferably, the guide groove includes an inner guide portion and an outer guide portion arranged near one end of the inner end surface of the guide column, the inner guide portion includes a third guide surface and a fourth guide surface, wherein the fourth guide surface on one side is inclined toward the fourth guide surface on the other side along the direction of the inner end surface of the guide column; the third guide surface is arranged between the inner end surface of the guide column and the fourth guide surface, and is an arc surface; the outer guide portion includes a fifth guide surface, and the fifth guide surfaces on both sides are parallel to each other.

[0022] According to a preferred embodiment of the present invention, the lower plate includes a lower plate body and a sleeve for connecting to a rotating shaft; the sleeve includes a mounting portion at a lower end, the mounting portion is provided with an external thread, and the sleeve is fixedly connected to the lower plate body via the external thread.

[0023] Preferably, a radially enlarged convex ring is provided on the top of the mounting portion of the sleeve, and a parabolic surface is provided on one end of the convex ring away from the mounting portion; the bottom surface of the convex ring is pressed against the top surface of the lower wear-resistant ring.

[0024] Preferably, two keyways are symmetrically provided on the shaft sleeve.

[0025] According to a preferred embodiment of the present invention, the upper plate is provided with a positioning pin hole or a threaded hole at a position corresponding to each guide column, and the positioning pin holes and the threaded holes are staggered with each other in the circumferential direction; the lower plate is also provided with corresponding positioning pin holes and bolt mounting holes, and the guide column is installed between the upper plate and the lower plate by means of positioning pins and bolts.

[0026] A preferred embodiment of the present invention further comprises paper pads, which are respectively arranged on the top surface and the bottom surface of the guide column.

[0027] Preferably, screw holes for adjusting dynamic balance are symmetrically provided at the bottom end of the sleeve.

[0028] In a preferred embodiment of the present invention, the upper plate and the lower plate are both made of titanium alloy.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The assembled wear-resistant ring of the present invention is composed of a plurality of wear-resistant sheets with semi-closed grooves which are sequentially spliced ​​together to form an annular structure. The semi-closed grooves between two adjacent wear-resistant sheets are combined to form a mounting groove for accommodating the end of a guide column, that is, the joint seam of two adjacent wear-resistant sheets is located at the midline position of the guide column. Therefore, after the wear-resistant ring of the present invention is installed on the atomizing disk, there is no joint seam at the atomizing port formed by two adjacent guide columns and the upper and lower wear-resistant sheets. In the process of high-speed discharge of lime slurry from the atomizing port, the closed atomizing port isolates the lime slurry from the upper plate and the lower plate, thereby avoiding the wear of the upper plate and the lower plate at the atomizing port caused by the lime slurry, thereby extending the service life of the atomizing disk.

[0031] 2. The assembled wear-resistant ring of the present invention has semi-closed grooves on both sides of the wear-resistant plate. When the tool is processed, the tool enters from both sides of the wear-resistant plate. By controlling the feed amount to gradually increase from zero to a certain amount, the force process of the tool is also gradually increased from zero to a certain amount, thereby avoiding the tool from breaking due to sudden force. On the one hand, the requirements for the stability of the machine tool are reduced, and the processing can be completed by using an ordinary machine tool, which reduces the equipment cost and the performance requirements of the tool, thereby greatly reducing the production cost and eliminating the potential safety hazards in the production process.

[0032] 3. The atomizing disk of the present invention comprises an upper disk, a lower disk, a plurality of guide columns, a lower wear-resistant sheet and an upper wear-resistant sheet. When the high-speed lime slurry hits the inner end surface of the guide column and recoils, the lime slurry hits the upper wear-resistant sheet and the lower wear-resistant sheet, that is, the upper wear-resistant sheet and the lower wear-resistant sheet avoid the wear of the upper disk and the lower disk caused by the reverse movement when the lime slurry hits the end surface of the guide block, thereby improving the service life of the atomizing disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a specific implementation mode of the assembled wear-resistant ring of the present invention.

[0034] Figure 2 for Figure 1 A three-dimensional view of the wear-resistant plate in the assembled wear-resistant ring shown.

[0035] Figure 3-Figure 5 This is a schematic structural diagram of the first specific embodiment of the atomizer disk of the present invention, wherein: Figure 3 It is a top view; Figure 4 Front view, sectional view; Figure 5 It is a three-dimensional picture.

[0036] Figure 6 for Figure 3 Schematic diagram of the structure after the upper plate and upper wear-resistant ring are hidden.

[0037] Figure 7 for Figure 3-Figure 5 A three-dimensional view of the guide column in the atomizing disk shown.

[0038] Figure 8 It is a schematic structural diagram of a second specific embodiment of the atomizing disk of the present invention (a top view after hiding the upper disk and the upper wear-resistant ring).

[0039] Fig. 9 for Figure 8 A three-dimensional view of the guide column in the atomizing disk shown.

[0040] Fig.10 It is a three-dimensional diagram of the guide column in the third specific embodiment of the atomizer disk of the present invention.

[0041] Fig.11 It is a three-dimensional diagram of the guide column in the fourth specific embodiment of the atomizing disk of the present invention. DETAILED DESCRIPTION

[0042] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0043] Example 1

[0044] See also Figure 1-2 An assembled wear-resistant ring comprises a plurality of wear-resistant sheets 1 distributed along a circumferential direction, wherein the plurality of wear-resistant sheets 1 are sequentially spliced ​​to form an annular structure, and is characterized in that a semi-closed groove 2 is provided on both sides of each wear-resistant sheet 1, and the semi-closed groove 2 forms an open structure at the side of the wear-resistant sheet 1; the semi-closed grooves 2 between two adjacent wear-resistant sheets 1 are combined together to form an installation groove for accommodating the end of a guide column 5.

[0045] See also Figure 2 The wear-resistant sheet 1 is provided with a semicircular hole 2-1 in the middle of the semi-enclosed groove 2 for avoiding the positioning pin 6 or the bolt 7. The wear-resistant sheet 1 with the above structure is provided, and two adjacent wear-resistant sheets 1 fit each other, and the adjacent upper semi-enclosed grooves 2 form a closed groove for accommodating the end of the guide column 5. The positioning pin 6 and the bolt 7 pass through the avoidance hole formed by the two adjacent semicircular holes 2-1 to connect and fix the upper plate 3, the upper wear-resistant sheet 1-1, the guide column 5, the lower wear-resistant sheet 1-2 and the lower plate 4 into an integral atomizing plate structure.

[0046] The working principle of the above-mentioned assembled wear-resistant ring is:

[0047] Since both sides of each wear-resistant sheet are provided with semi-enclosed grooves 2, the semi-enclosed grooves 2 form an open structure at the side of the wear-resistant sheet 1; the semi-enclosed grooves 2 between two adjacent wear-resistant sheets 1 are combined to form a mounting groove for accommodating the end of the guide column 5, that is, the joint seam of the two adjacent wear-resistant sheets 1 is located at the midline position of the guide column 5. Therefore, after the wear-resistant ring of the present invention is installed on the atomizing disk, there is no joint seam in the atomizing port formed by the two adjacent guide columns 5 and the upper and lower wear-resistant sheets 1. In the process of high-speed discharge of lime slurry from the atomizing port, the closed atomizing port isolates the lime slurry from the upper plate 3 and the lower plate 4, thereby avoiding the lime slurry from affecting the upper plate 3 and the lower plate 4. And the wear of the lower plate 4 at the atomization port position, extending the service life of the atomization plate; at the same time, the hardness of the wear-resistant plate 1 is very high. By setting the semi-closed groove 2, when the tool is processed, the tool enters from both sides of the wear-resistant plate 1, and the feed amount is controlled to gradually increase from zero to a certain amount, so that the force process of the tool is also gradually increased from zero to a certain amount, thereby avoiding the situation where the tool is broken due to sudden force. On the one hand, the requirements for the stability of the machine tool are reduced, and the processing can be completed by an ordinary machine tool, which reduces the equipment cost and the performance requirements of the tool, thereby greatly reducing the production cost and eliminating the safety hazards in the production process.

[0048] Example 2

[0049] See also Figure 3-Figure 7 , an atomizing disk, characterized in that it includes an upper disk 3, a lower disk 4, a guide column 5 uniformly distributed between the upper disk 3 and the lower disk 4 along the circumferential direction, and the spliced ​​wear-resistant ring; the spliced ​​wear-resistant ring is divided into an upper wear-resistant ring and a lower wear-resistant ring, the wear-resistant sheet in the upper wear-resistant ring is an upper wear-resistant sheet 1-1, and the wear-resistant sheet in the lower wear-resistant ring is a lower wear-resistant sheet 1-2; the upper wear-resistant ring is arranged at the lower part of the upper disk 3, and the lower wear-resistant ring is arranged at the upper part of the lower disk 4, the upper part of the guide column 5 is embedded in the mounting groove between two adjacent upper wear-resistant sheets 1-1, and the lower part of the guide column 5 is embedded in the mounting groove between two adjacent lower wear-resistant sheets 1-2.

[0050] See also Figure 4The bottom of the upper plate 3 is provided with an upper groove for accommodating the upper wear-resistant ring, and the top of the lower plate 4 is provided with a lower groove for accommodating the lower wear-resistant ring; wherein, the upper plate 3 includes an upper plate outer ring portion 3-1 and an upper plate inner ring portion 3-2 arranged on the upper plate outer ring portion 3-1, an open groove is provided at the bottom of the upper plate outer ring portion 3-1, and a raised step 3-2-1 is provided at the bottom of the outer circular side surface of the upper plate inner ring portion 3-2, and the open groove, the outer circular side surface of the upper plate inner ring portion 3-2 and the top surface of the raised step 3-2-1 constitute the upper groove. In this way, the upper groove is composed of an open groove, the outer circular side surface of the inner ring portion 3-2 of the upper plate, and the top surface of the raised step 3-2-1. When the upper wear-resistant ring is installed in the upper groove, the upper wear-resistant ring fits on the top surface of the raised step 3-2-1, and the raised step 3-2-1 covers the inner circular side surface of the upper wear-resistant ring to prevent lime slurry from entering the joint between the two adjacent upper wear-resistant sheets 1-1 from the inner circular side surface of the upper wear-resistant ring, thereby protecting the position of the upper plate 3 at the joint and extending the service life of the atomizing disk.

[0051] See also Figure 4-Figure 7 , the inner end face of the guide column 5 is a semicircular surface, and the contour of the outer end face of the guide column 5 is a minor arc, the center of which coincides with the center of the outer circular contour of the lower plate 4; both sides and the inner end face of the guide column 5 are provided with guide grooves 8. The outer end face of the conventional guide column 5 is a semicircular surface, so that the outer end of the atomization port forms a space formed by the side extension surface of the guide column 5 and the cut surface of the outer end face of the guide column 5, resulting in the accumulation of lime slurry in the space, and over time, lime scaling will form at the outer end of the atomization port, affecting the atomization effect; by setting the contour of the outer end face of the guide column 5 to a minor arc, and the center of the minor arc coincides with the center of the outer circular contour of the lower plate 4, the two side faces of the guide column 5 can extend a longer distance to the outer end face, so that the space formed by the side extension surface of the guide column 5 and the cut surface of the outer end face of the guide column 5 at the outer end of the atomization port is greatly reduced, reducing the lime slurry outside the atomization port. The outer end surface of the guide column 5 can also be a plane, so that the two side surfaces of the guide column 5 can extend the longest distance to the outer end surface, so that the space at the outer end of the atomization port formed by the side extension surface of the guide column 5 and the outer end surface of the guide column 5 is greatly reduced, reducing the space for the lime slurry to scale at the outer end of the atomization port, thereby reducing the scaling at the outer end of the atomization port; in addition, the two sides of the guide column 5 extend a longer distance to the outer end surface so that the guide grooves 8 on the two sides have a longer distance, thereby extending the acceleration time of the lime slurry, increasing the speed at which the lime slurry is discharged outward, and improving the atomization effect.

[0052] See also Figure 4-Figure 7The guide column 5 is provided with a mounting hole, and the mounting hole is centrally arranged on the guide column 5. The mounting hole is centrally arranged on the guide column 5, so that the two sides of the guide column 5 are symmetrical about the mounting hole, which is convenient for processing and manufacturing, and each guide column 5 has the characteristics of interchangeability, so that there is no need to distinguish the left and right directions during assembly, which is convenient for assembly and improves efficiency.

[0053] See also Figure 3-Figure 5 The lower plate 4 includes a lower plate body and a sleeve 4-1 for connecting with the rotating shaft; the sleeve 4-1 includes a mounting portion at the lower end, the mounting portion is provided with an external thread, and the sleeve 4-1 is fixedly connected with the lower plate body through the external thread. The lower plate 4 with the above structure is provided, and the sleeve 4-1 is detachably connected with the lower plate 4 body. Since the lower plate body has strict requirements on materials and is expensive, the sleeve 4-1 can be made of ordinary steel with a lower price, which reduces the manufacturing cost and processing difficulty on the one hand, and facilitates subsequent maintenance on the other hand.

[0054] See also Figure 4 The top of the mounting portion of the sleeve 4-1 is provided with a radially enlarged convex ring, and the end of the convex ring away from the mounting portion is provided with a parabolic surface; the bottom surface of the convex ring is pressed against the top surface of the lower wear-resistant ring. The convex ring is provided so that when the sleeve 4-1 is connected to the lower plate body, the end surface of the convex ring presses against the lower wear-resistant ring, which not only fixes the lower wear-resistant ring, but also covers the lower plate 4 body, thereby further protecting the lower plate body; a parabolic surface is provided at one end of the convex ring, which plays a guiding role when the lime slurry enters the atomizing disk, reduces the impact force of the lime slurry on the lower plate 4, thereby further protecting the atomizing disk.

[0055] See also Figure 3-Figure 6 The shaft sleeve 4-1 is symmetrically provided with two keyways. The atomizer disc is connected to the rotating shaft through the shaft sleeve 4-1, specifically, the shaft sleeve 4-1 is connected to the transmission shaft through a key. The two symmetrically arranged keyways make the connection more secure, ensuring the safety performance of the connection position of the atomizer disc when rotating at high speed.

[0056] See also Figure 3-Figure 6 The upper plate 3 is provided with a positioning pin hole or a threaded hole at a position corresponding to each guide column 5, and the positioning pin holes and the threaded holes are staggered in the circumferential direction; the lower plate 4 is also provided with a positioning pin hole and a bolt installation hole, and the guide column 5 is installed between the upper plate 3 and the lower plate 4 through the positioning pin 6 and the bolt 7. The positioning pin holes and the threaded holes are provided, and the upper plate 3, the guide column 5, and the upper plate 3 are connected and fixed by the positioning pin 6 and the bolt 7 to form an integral atomizing plate.

[0057] See also Figure 4, and also includes paper pads, which are respectively arranged on the top and bottom surfaces of the guide column 5. In this way, paper pads are installed between the guide column 5 and the upper wear-resistant sheet 1-1, and between the guide column 5 and the lower wear-resistant sheet 1-2, so as to avoid rigid contact between the guide column 5 and the upper wear-resistant sheet 1-1 and the lower wear-resistant sheet 1-2, and play a role of buffer protection.

[0058] See also Figure 4 The bottom end of the sleeve 4-1 is symmetrically provided with screw holes 4-2 for adjusting dynamic balance. Thus, by adjusting the screws installed on the screw holes 4-2, the balance performance of the atomizing disk during rotation can be adjusted, so that the atomizing disk has excellent balance accuracy during high-speed rotation.

[0059] See also Figure 3-Figure 6 The upper plate 3 and the lower plate 4 are both made of titanium alloy. Titanium alloy has a high specific strength and is lighter than traditional steel materials in the same volume. On the other hand, titanium alloy has good corrosion resistance and is not easily corroded in the acidic environment of flue gas desulfurization, which makes the atomizing plate have a longer service life.

[0060] The working principle of the above-mentioned enhanced wear-resistant atomizer disc is:

[0061] The lime slurry enters from the feed port in the middle of the atomizing disk, and the atomizing disk rotates at high speed; the lime slurry entering the atomizing disk diffuses to the upper surface of the lower disk 4, and the centrifugal force generated by the high-speed rotating atomizing disk acts on the lime slurry, so that the lime slurry is discharged from the atomizing port formed by the two adjacent guide columns 5 and the upper wear-resistant sheet 1-1 and the lower wear-resistant sheet 1-2, thereby forming a uniform layer of mist around the atomizing disk; since each wear-resistant sheet is provided with a semi-enclosed groove 2 on both sides, the semi-enclosed groove 2 forms an open structure at the side of the wear-resistant sheet; the semi-enclosed grooves 2 between the two adjacent wear-resistant sheets are combined to form a mounting groove for accommodating the end of the guide column 5, that is, the joint seam of the two adjacent wear-resistant sheets is located at the midline position of the guide column 5, so the present invention After the wear-resistant ring is installed on the atomizing disk, there is no joint seam in the atomizing port formed by the two adjacent guide columns 5 and the upper and lower wear-resistant plates. In the process of lime slurry being discharged from the atomizing port at high speed, the closed atomizing port isolates the lime slurry from the upper plate 3 and the lower plate 4, thereby avoiding the lime slurry from wearing the upper plate 3 and the lower plate 4 at the atomizing port, thereby extending the service life of the atomizing disk; in addition, when the high-speed moving lime slurry hits the inner end face of the guide column 5 and recoils back, the lime slurry hits the upper wear-resistant plate 1-1 and the lower wear-resistant plate 1-2, that is, the upper wear-resistant plate 1-1 and the lower wear-resistant plate 1-2 avoid the wear of the upper plate 3 and the lower plate 4 caused by the reverse movement when the lime slurry hits the end face of the guide block, thereby improving the service life of the atomizing disk.

[0062] Example 3

[0063] See also Figure 8-Figure 9The difference between this embodiment and the embodiment 2 is that the inner end surface and the outer end surface of the guide column 5 are both semicircular surfaces, and guide grooves are provided on both sides of the guide column 5. When the guide column 5 with the above structure is provided, the guide grooves play a role in draining the lime slurry during the process of the lime slurry being discharged outward under the action of centrifugal force, thereby improving the atomization effect.

[0064] See also Figure 8 The guide grooves on both sides are arranged in parallel. The guide grooves are arranged in parallel on both sides of the guide column 5, which has a simple structure and is convenient for processing. At the same time, it also has a guiding function and improves the atomization effect.

[0065] Example 4

[0066] See also Fig.10 , compared with Example 3, the difference between this embodiment and Example 3 is that the guide groove includes a first guide surface 9 and a second guide surface 10, wherein the second guide surface 10 on one side is inclined toward the second guide surface 10 on the other side along the direction of the inner end surface of the guide column 5; the first guide surface 9 is arranged between the inner end surface of the guide column 5 and the second guide surface 10, and is an arc surface. The guide groove of the above structure is arranged, and an angle is formed between the second guide surfaces 10 on both sides, and the second guide surface 10 and the inner end surface of the guide column 5 are transitioned through the arc of the first guide surface 9, so that when the lime slurry moves outward under the action of centrifugal force, the impact of the lime slurry on the guide column 5 will be greatly reduced due to the sharp angle of the inner end surface of the guide column 5, thereby reducing the vibration of the atomizing disk when rotating at high speed and improving the stability of the atomizing disk; at the same time, after the lime slurry impacts the inner end surface of the guide column 5, the atomization effect is improved through the guiding effect of the first guide surface 9 and the second guide surface 10.

[0067] Example 5

[0068] See also Fig.11, the difference between this embodiment and embodiment 4 is that the guide groove includes an inner guide portion and an outer guide portion arranged at one end of the inner end surface of the guide column 5, the inner guide portion includes a third guide surface 11 and a fourth guide surface 12, wherein the fourth guide surface 12 on one side is inclined toward the fourth guide surface 12 on the other side along the direction of the inner end surface of the guide column 5; the third guide surface 11 is arranged between the inner end surface of the guide column 5 and the fourth guide surface 12, and is an arc surface; the outer guide portion includes a fifth guide surface 13, and the fifth guide surfaces 13 on both sides are parallel to each other. The guide groove of the above structure is provided, and an angle is formed between the fourth guide surfaces 12 on both sides. The fourth guide surface 12 and the inner end surface of the guide column 5 are transitioned through the arc of the third guide surface 11. In this way, when the lime slurry moves outward under the action of centrifugal force, since the inner end surface of the guide column 5 is in a pointed shape, the impact of the lime slurry on the guide column 5 will be greatly reduced, thereby reducing the vibration of the atomizing disk during high-speed rotation and improving the stability of the atomizing disk; at the same time, after the lime slurry impacts the inner end surface of the guide column 5, it reaches the fifth guide surface 13 through the guiding effect of the third guide surface 11 and the fourth guide surface 12. The fifth guide surface 13 not only plays a guiding role, but also prolongs the acceleration time of the lime slurry, thereby improving the atomization effect.

[0069] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An atomizing disk, characterized in that: It includes an upper plate, a lower plate, guide columns evenly distributed between the upper plate and the lower plate along the circumferential direction, and a spliced ​​wear-resistant ring; The spliced ​​wear-resistant ring comprises a plurality of wear-resistant sheets distributed along the circumferential direction, wherein the plurality of wear-resistant sheets are spliced ​​in sequence to form an annular structure, and both sides of each wear-resistant sheet are provided with semi-enclosed grooves, and the semi-enclosed grooves form an open structure at the side of the wear-resistant sheet; the semi-enclosed grooves between two adjacent wear-resistant sheets are combined together to form a mounting groove for accommodating the end of the guide column; The spliced ​​wear-resistant ring is divided into an upper wear-resistant ring and a lower wear-resistant ring, the wear-resistant sheet in the upper wear-resistant ring is an upper wear-resistant sheet, and the wear-resistant sheet in the lower wear-resistant ring is a lower wear-resistant sheet; the upper wear-resistant ring is arranged at the lower part of the upper plate, and the lower wear-resistant ring is arranged at the upper part of the lower plate, the upper part of the guide column is embedded in the mounting groove between two adjacent upper wear-resistant sheets, and the lower part of the guide column is embedded in the mounting groove between two adjacent lower wear-resistant sheets; The bottom of the upper plate is provided with an upper groove for accommodating the upper wear-resistant ring, and the top of the lower plate is provided with a lower groove for accommodating the lower wear-resistant ring; wherein the upper plate comprises an upper plate outer ring portion and an upper plate inner ring portion arranged on the upper plate outer ring portion, an open groove is provided at the bottom of the upper plate outer ring portion, a raised step is provided at the bottom of the outer circular side surface of the upper plate inner ring portion, and the open groove, the outer circular side surface of the upper plate inner ring portion and the top surface of the raised step constitute the upper groove; The inner end surface and the outer end surface of the guide column are both semicircular surfaces, and guide grooves are provided on both sides of the guide column; The guide groove includes a first guide surface and a second guide surface, wherein the second guide surface on one side is inclined toward the second guide surface on the other side along the direction of the inner end surface of the guide column; the first guide surface is arranged between the inner end surface of the guide column and the second guide surface, and is an arc surface; or, the guide groove includes an inner guide part and an outer guide part arranged at one end close to the inner end surface of the guide column, the inner guide part includes a third guide surface and a fourth guide surface, wherein the fourth guide surface on one side is inclined toward the fourth guide surface on the other side along the direction of the inner end surface of the guide column; the third guide surface is arranged between the inner end surface of the guide column and the fourth guide surface, and is an arc surface; the outer guide part includes a fifth guide surface, and the fifth guide surfaces on both sides are parallel to each other.

2. An atomizing disk according to claim 1, characterized in that: The lower plate includes a lower plate body and a sleeve for connecting with the rotating shaft; the sleeve includes a mounting portion located at the lower end, the mounting portion is provided with an external thread, and the sleeve is fixedly connected with the lower plate body through the external thread.

3. The atomizing disk according to claim 1, characterized in that: The upper plate is provided with positioning pin holes or threaded holes at positions corresponding to each guide column, and the positioning pin holes and threaded holes are staggered with each other in the circumferential direction; the lower plate is also provided with corresponding positioning pin holes and bolt mounting holes, and the guide column is installed between the upper plate and the lower plate by positioning pins and bolts.

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