Hammering-resistant water grate

Abstract

The utility model relates to the field of boiler slag filtering, and discloses a hammering-resistant water grate which comprises a supporting assembly, the supporting assembly comprises a mounting plate and a plurality of supporting plates, the mounting plate and the supporting plates are all made of 16 Mn steel with the thickness larger than or equal to 6 mm, the supporting plates are vertically welded to the mounting plate at equal intervals, a plurality of mounting holes are formed in the supporting plates at equal intervals, and the supporting plates are connected with the mounting plate. The distance between every two adjacent mounting holes is smaller than or equal to 100 mm, the distance between the mounting holes and the edge of the supporting plate is larger than or equal to 20 mm, and a plurality of round steel bars are fixed in the mounting holes. According to the scheme, the water grate has the advantages that structural strength is high, high-strength 16 Mn steel plates are used as the supporting plate and the mounting plate, the supporting plate is fixed to the mounting plate, and the overall structural strength of the water grate is effectively improved; 2, hammering buffering: mounting holes are formed in the supporting plates, round steel is fixed in the mounting holes, and during hammering, the mounting plates are directly impacted, so that the round steel can be prevented from being directly influenced by hammering, and deformation is reduced;

Description

Technical Field

[0001] The utility model relates to the field of boiler slag filtering, in particular to a hammer-resistant water grate. Background Art

[0002] In the practice of modern thermal power and various industrial water treatment systems, effective treatment and transportation of boiler slag is a key link to ensure the smooth operation of the system. The slag discharged from the boiler will be flushed to the forebay of the slag pump by the slag scoop machine and slag crusher along the slag ditch with water flow, and then pumped to the dewatering bin by the slag pump. However, a significant technical limitation of the existing configuration is that some boilers are only equipped with a single-stage slag crushing equipment, which results in the maximum size of the slag exceeding 100mm even after primary crushing, which directly challenges the smoothness of the subsequent pumping process. In view of this, in order to protect the slag pump from large pieces of slag and prevent potential blockage risks, it is currently generally chosen to install a water grate at the entrance of the slag pump forebay as a filtering barrier. The original intention of this measure is to isolate larger slag blocks and ensure that only fine particles can pass through and enter the pump body. When there are many large pieces of slag blocking the water grate, in order to prevent the slag from blocking the water grate, the staff needs to break up the large pieces of slag by hammering, so that the slag passes through the water grate and is discharged through the slag discharge pump. However, practice has shown that when faced with large slag blocks that must be further broken by manual hammering, water grates made of conventional materials and structures are unable to cope with the situation. These water grates are prone to deformation and even damage after frequent gravity hammering, and their original grid structure cannot be maintained, thus providing a gap for large slag blocks to penetrate into the slag discharge pump through the deformed parts. The direct consequence of this problem is that large pieces of slag accumulate in the pump body, which not only blocks the impeller flow channel, but also causes serious wear on key components such as the pump volute and guard plate, greatly shortening the service life of the slag discharge pump and frequently triggering maintenance needs, which not only increases maintenance costs, but also seriously affects the stability and efficiency of the entire slag discharge system. Therefore, exploring and developing new water grate materials and structural designs that can withstand the impact of high-intensity operations and maintain structural integrity has become one of the technical challenges that need to be urgently addressed in the current industrial water treatment field. Utility Model Content

[0003] The utility model aims to provide a hammer-resistant water grate to ensure the integrity of the water grate grid structure during the hammering process and avoid the blockage and wear problems caused by the deformation of the water grate.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hammer-resistant water grate, including a supporting assembly, the supporting assembly including a mounting plate and a plurality of supporting plates, the mounting plate and the supporting plate are made of 16Mn steel with a thickness greater than or equal to 6 mm, the supporting plates are equidistantly and vertically welded to the mounting plates, a plurality of mounting holes are equidistantly arranged on the supporting plates, the hole spacing between adjacent mounting holes is less than or equal to 100 mm, the distance between the mounting holes and the edge of the supporting plates is greater than or equal to 20 mm, and a plurality of round steels are fixed in the mounting holes.

[0005] The beneficial effects of this solution are: 1. Structural strength: high-strength 16Mn steel plates are used as support plates and mounting plates, and the support plates are fixed on the mounting plates, which effectively improves the overall structural strength of the water grate; 2. Hammer buffering: mounting holes are set on the support plates, and round steel is fixed in the mounting holes. When hammering, the direct impact position is the mounting plate, which can avoid the round steel being directly affected by the hammer and reduce deformation.

[0006] Furthermore, the line connecting the centers of the mounting holes is on the same straight line and is parallel to the edge line of the long side of the mounting plate.

[0007] Beneficial effect: The center line of the mounting holes is parallel to the edge line of the mounting plate, so that the spacing of the round steels is equal, and the size of the filter holes meets the design specifications.

[0008] Furthermore, the diameter of the mounting hole is greater than or equal to 17 mm, and the diameter of the round steel is 1-2 mm smaller than the diameter of the mounting hole.

[0009] Beneficial effect: It is easy to insert the round steel into the installation hole, and at the same time, the gap is small and easy to weld. This ensures the connection strength between the round steel and the support plate, and avoids the weld between the round steel and the installation hole from being damaged during hammering, which causes the water grate to rust and eventually damage.

[0010] Furthermore, the width of the mounting plate and the supporting plate is ≥ 60 mm.

[0011] Beneficial effect: By widening the mounting plate and the support plate, the connection area between the mounting plate and the support plate is extended, and the connection strength between the mounting plate and the support plate is enhanced.

[0012] Furthermore, the support assembly also includes a bottom support, and the bottom support is fixed to the mounting plate and the support plate at one end.

[0013] Beneficial effect: Strengthen the bottom width of the water grate to facilitate installation.

[0014] Furthermore, the material of the bottom support is [14 channel steel.

[0015] Beneficial effects: 1. Strengthen the bottom structural strength of the water grate; 2. Widen the bottom of the water grate for easy installation.

[0016] Furthermore, a plurality of grooves adapted to the support plate are arranged in the width direction of the mounting plate, the depth of the grooves is lower than the width of the mounting plate, and the ends of the support plate are fixed in the grooves.

[0017] Beneficial effect: By setting a groove on the mounting plate and fixing the support plate in the groove, the force on the support plate is directly transmitted to the mounting plate when hammering, thereby reducing the force on the welding position, reducing the risk of welding detachment due to hammering, and improving the structural strength of the water grate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional diagram of Embodiment 1 of the present utility model;

[0019] Figure 2 It is a front view of embodiment 1 of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the support plate of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of Example 2 of the utility model;

[0022] Figure 5 This is a three-dimensional diagram of the mounting plate of Example 3 of the utility model. DETAILED DESCRIPTION

[0023] The following is further described in detail through specific implementation methods:

[0024] The reference numerals in the drawings of the specification include: round steel 1, support plate 2, mounting hole 21, mounting plate 3, bottom support 4.

[0025] Example 1

[0026] Embodiment 1 is basically as attached Figure 1-3 As shown, Figure 1-3 A hammer-resistant water grate is shown, taking a 1660*660 water grate as an example. Figure 1 As shown, it includes a support assembly and round steel 1. The support assembly includes a mounting plate 3 and a plurality of support plates 2. The mounting plate 3 and the support plate 2 are made of 16Mn steel with a thickness greater than or equal to 6mm and a width greater than or equal to 60mm. The support plates 2 are equidistantly and vertically welded on the mounting plate 3. Figure 2 The distance d1 between adjacent support plates 2 is less than or equal to 60 mm, and is 60 mm in this embodiment.

[0027] The support plate 2 is provided with a plurality of mounting holes 21 at equal intervals. The diameter of the mounting hole 21 is greater than or equal to 17 mm. The diameter of the round steel 1 is 1-2 mm smaller than the diameter of the mounting hole 21. In this solution, the diameter of the mounting hole 21 is 17 mm, and the diameter of the round steel 1 is 16 mm. Figure 3As shown, the hole spacing d2 between adjacent mounting holes 21 is less than or equal to 100 mm, and the distance between the mounting hole 21 and the edge of the support plate 2 is greater than or equal to 20 mm. In this solution, the line connecting the centers of the mounting holes 21 is on the same straight line and parallel to the edge line of the long side of the mounting plate 3. The diameter of the round steel 1 is 16 mm.

[0028] The specific implementation process is as follows:

[0029] One assembly method is: during assembly, first weld the support plate 2 to the mounting plate 3 at a spacing of 60 mm, and the contact positions between the support plate 2 and the mounting plate 3 are all fully welded. Then, insert the round steel 1 into the mounting hole 21, and the connection between the round steel 1 and the mounting hole 21 is all fully welded. Finally, perform at least two anti-corrosion treatments on the welded support assembly and the round steel 1. The anti-corrosion treatment method can be a combination of hot spraying, vacuum plating, painting, and spray painting. The above anti-corrosion treatment method is a prior art and will not be repeated here.

[0030] Another assembly method is: first, all the support plates 2 are connected in series to the round steel 1 through the mounting holes 21, and then the support plates are welded to the mounting plates 3 at equal distances, and the contact positions between the mounting holes 21 and the round steel 1 are fully welded. After all the support plates 2 are welded to the mounting plates 3 and the welding between the support plates 2 and the round steel 1 is completed, anti-corrosion treatment is finally performed.

[0031] Example 2

[0032] On the basis of Example 1, the support assembly in Example 2 further includes a bottom support 4, such as Figure 4 As shown, the material of the bottom support 4 is [14 channel steel, and the bottom support 4 is welded to the mounting plate 3 and the support plate 2 at one end. It is required that the contact positions between the bottom support 4 and the mounting plate 3 and the support plate 2 are fully welded. After the welding is completed, at least two anti-corrosion treatments are also performed.

[0033] Example 3

[0034] On the basis of Example 2, Figure 5 As shown, the mounting plate 3 of the fourth embodiment is provided with a plurality of grooves 31 at equal intervals. Figure 5 As shown, the depth of the second and third grooves 331 on the left side is relatively low, so that a gap is reserved between the support plate 2 and the bottom support 4. The water flows around the bottom support 4, so that the flow rate is accelerated when the water flows to the bottom of the water grate, thereby taking away the slag accumulated at the bottom of the water grate and reducing the accumulation of slag at the bottom of the water grate.

[0035] The width and thickness of the end of the support plate 2 are adapted to the length and width of the groove 31. During installation, the two ends of the support plate are inserted into the groove 31, and the contact parts between the support plate and the mounting plate are fully welded. When knocked, the force received by the support plate is directly transmitted to the mounting plate, thereby preventing the support plate from slipping due to hammering and the mounting plate, thereby destroying the connection structure between the support plate and the mounting plate and affecting the structural strength of the water grate.

[0036] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that the technical means for solving the problems in the above-mentioned embodiments of the utility model can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, several deformations and improvements can be made without departing from the technical solution of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A hammer-resistant water grate, characterized in that: It includes a support assembly, which includes a mounting plate and a plurality of support plates. The mounting plate and the support plates are both made of 16Mn steel with a thickness greater than or equal to 6mm. The support plates are equidistantly and vertically welded on the mounting plates. The spacing between adjacent support plates is less than or equal to 60mm. A plurality of mounting holes are equidistantly arranged on the support plates. The spacing between adjacent mounting holes is less than or equal to 100mm. The distance between the mounting holes and the edges of the support plates is greater than or equal to 20mm. A plurality of round steels are fixed in the mounting holes.

2. The hammer-resistant water grate according to claim 1, characterized in that: The line connecting the centers of the mounting holes is on the same straight line and is parallel to the edge line of the long side of the mounting plate.

3. A hammer-resistant water grate according to claim 2, characterized in that: The diameter of the mounting hole is greater than or equal to 17 mm, and the diameter of the round steel is 1-2 mm smaller than the diameter of the mounting hole.

4. A hammer-resistant water grate according to claim 3, characterized in that: The width of the mounting plate and support plate is ≥60mm.

5. The hammer-resistant water grate according to claim 1, characterized in that: The support assembly also includes a bottom support, which is fixed to the mounting plate and the support plate at one end.

6. The hammer-resistant water grate according to claim 5, characterized in that: The material of the bottom support is [14 channel steel.

7. The hammer-resistant water grate according to claim 1, characterized in that: A plurality of grooves adapted to the support plate are arranged in the width direction of the mounting plate, the depth of the grooves is lower than the width of the mounting plate, and the ends of the support plate are fixed in the grooves.

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