Rotor surface layer anti-corrosion device of sludge drying machine

Abstract

The utility model discloses a rotor surface layer anti-corrosion device of a sludge drying machine, and belongs to the technical field of rotor processing, and the rotor surface layer anti-corrosion device comprises fixing parts which are uniformly distributed on the outer surface of a rotor; the anti-corrosion assembly is connected with the fixing piece; the anti-corrosion assembly covers the outer surface of the rotor and is used for isolating sludge; a clamping groove is formed between every two adjacent fixing pieces and is suitable for the anti-corrosion assembly to be embedded, and then the anti-corrosion assembly is fixed to the rotor through the fixing pieces. The beneficial effects of the utility model are that: (1) the outer surface of the rotor is covered by the anti-corrosion assembly made of stainless steel and the fixing member in a clamping manner, the structure is simple, and the cost is greatly reduced; and (2) the stainless steel protective cover which is extremely low in consumption and abrasion and long in service life is adopted, so that the anti-corrosion effect and the service life which are far better than those brought by spraying anti-corrosion and abrasion-resistant materials are achieved.

Description

Technical Field

[0001] The present application relates to the field of rotor processing technology, and in particular to a rotor surface anti-corrosion device for a sludge dryer. Background Art

[0002] Sludge drying is the process of removing most of the water content from sludge through filtration or evaporation, typically using facilities such as sludge dryers. However, the rotors of sludge dryers are susceptible to corrosion due to the harsh operating environment, which shortens their service life. Therefore, solving the corrosion problem of sludge dryer rotors is an urgent issue with broad market prospects and a wide range of applications.

[0003] However, the existing rotor surface anti-corrosion device has the following defects: the rotor anti-corrosion method of the sludge dryer in the existing technology mostly adopts spraying anti-corrosion and wear-resistant materials, but because the rotor surface area is too large, the spraying cost is too high and it is extremely easy to wear; the equipment structure of the rotor anti-corrosion of the sludge dryer in the existing technology is too complicated and too much cost is invested. Summary of the Invention

[0004] The purpose of this application is to provide a rotor surface anti-corrosion device that can solve at least one of the defects in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the present application provides a rotor surface anti-corrosion device for a sludge dryer, comprising: fixings, which are evenly distributed on the outer surface of the rotor; and anti-corrosion components, which are connected to the fixings; the anti-corrosion components cover the outer surface of the rotor for isolating sludge; a slot is formed between two adjacent fixings, suitable for the anti-corrosion components to be embedded, and then the anti-corrosion components are fixed to the rotor through the fixings. The rotor surface anti-corrosion device of the sludge dryer of the present application is different from the prior art in which anti-corrosion and wear-resistant materials are sprayed. Instead, the fixings are fixed on the rotor surface to form a slot as a connection method; the anti-corrosion component is then fixed to the outer surface of the rotor through the connection with the slot. Therefore, when the rotor of the sludge dryer is working in the sludge, the anti-corrosion component isolates the sludge, preventing the sludge from entering and contacting the rotor to corrode the rotor surface. Since the rotor of the sludge dryer is made of carbon steel, it has good rigidity when running at high speed in a high temperature environment, but carbon steel is easily corroded by sludge, so stainless steel anti-corrosion components are used as protection; stainless steel has good oxidation resistance, corrosion resistance, toughness and machinability, and is not afraid of the corrosive substances in the sludge in the working environment. At the same time, its good plasticity makes it easy to create anti-corrosion components that fit the size of the rotor, which can cover the outer surface of the rotor in all directions and have a good anti-corrosion effect. The rotor surface anti-corrosion device of the sludge dryer in this application has an extremely simple structure. It only uses two components to embed and snap together to create a stainless steel protective cover on the outer surface of the rotor. After the anti-corrosion component and the fixing part form a slot embedded and connected, the anti-corrosion component and the fixing part are fixed by welding or screw connection to enhance the stability of the connection; this device is small in size and occupies little space, which greatly reduces the cost.

[0006] Preferably, the fixing member is provided with a plurality of first through-holes extending therethrough, so that the fixing member is connected to the anti-corrosion component through the first through-holes. A row of evenly distributed first through-holes is provided on both sides of each fixing member, and the first through-holes penetrate the fixing member. After the fixing member and the anti-corrosion component are assembled, the first through-holes are filled with solder for welding, or are fixedly connected using screws.

[0007] Preferably, the anti-corrosion component includes a connector adapted to be inserted into the slot and fixed to the rotor via the slot; the connector is provided with a curved surface so as to fit in with the surface of the rotor. Since the rotor is in the shape of a drum, if the connector is in a rectangular parallelepiped or other shape, it is impossible to completely fit the connector to the outer surface of the rotor, thereby causing sludge to invade the gaps of the rotor of the sludge dryer during operation, greatly reducing the anti-corrosion effect; therefore, a curved surface structure is adopted to enable the connector to fit in with the surface of the rotor. When all the connectors are inserted into the slot, the anti-corrosion component is equivalent to a ring that fits tightly against the outer surface of the rotor, ensuring a good anti-corrosion effect.

[0008] Preferably, pads are provided on both sides of the connection between the connector and the slot, and the pads fit in contact with the fixing member, thereby reinforcing the connection between the anti-corrosion assembly and the fixing member. If only the connector is inserted into the slot, the connector may tilt during assembly, resulting in the connector being inserted into the slot but not fully fitting the rotor, thus affecting the anti-corrosion effect. However, by providing pads on both sides parallel to the fixing member, the pads on both sides can be used as guide rails to ensure that the connector fits the rotor after installation. At the same time, the pads can increase the friction between the connector and the fixing member, greatly improving the stability of the connection between the connector and the fixing member.

[0009] Preferably, the backing plate is provided with a plurality of second through-holes extending therethrough, and the anti-corrosion component and the fixing member are connected to each other through the first through-holes and the second through-holes. A row of evenly distributed second through-holes is provided on both sides of each backing plate, and the second through-holes penetrate the backing plate. After the fixing member and the anti-corrosion component are assembled, the first through-holes and the second through-holes are filled with solder and welded to securely connect the first through-holes with the second through-holes; alternatively, screws are inserted through the first through-holes and the second through-holes to securely connect the two.

[0010] Preferably, the anti-corrosion assembly further includes a protective member disposed on the backing plate; the protective member is connected to the fixing member and covers the upper surface of the fixing member to isolate sludge. The connecting member completely covers the outer surface of the rotor within the slot, while the fixing member covers the remaining portion, ensuring excellent corrosion protection. However, this exposure of the fixing member to sludge can lead to corrosion problems over long periods of use. Therefore, the use of the protective member to cover and isolate the fixing member extends its service life.

[0011] Preferably, the first through-holes and the second through-holes are the same number and size, and the first through-holes are aligned and connected with the second through-holes, thereby securing the anti-corrosion assembly to the rotor. The first through-holes and the second through-holes have a one-to-one correspondence in number and size, thereby enabling connection by welding or screws. A different number of first through-holes and second through-holes is acceptable, but if some through-holes do not correspond, these through-holes cannot be used for securing, have no practical value, and are therefore not considered in this application.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] (1) By clamping the stainless steel anti-corrosion components with the fixing parts, the outer surface of the rotor is covered, the structure is simple and the cost is greatly reduced;

[0014] (2) By using a stainless steel protective cover with minimal wear and tear and a long service life, the anti-corrosion effect and service life far exceed those achieved by spray-coated anti-corrosion and wear-resistant materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of Example 1 of the present utility model.

[0016] Figure 2 This is a schematic structural diagram of an anti-corrosion device according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic structural diagram of the anti-corrosion component in Example 1 of the present utility model.

[0018] Figure 4 This is a schematic structural diagram of the anti-corrosion component in Example 1 of the present utility model from the right side.

[0019] In the figure: 1, anti-corrosion device; 2, rotor; 11, fixing member; 111, slot; 112, first through hole; 121, second through hole; 122, pad; 123, protective member. DETAILED DESCRIPTION

[0020] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] In the description of this application, it should be noted that for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, the directions and positional relationships indicated are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of this application.

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0023] The terms "comprises" and "having" and any variations thereof in the specification and claims of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0024] For ease of understanding, the following will be described through specific embodiments. It should be noted that the specific structure of the surface anti-corrosion device 1 of the rotor 2 of the sludge dryer includes but is not limited to the following embodiments.

[0025] Example 1:

[0026] The present application provides a surface anti-corrosion device 1 for a rotor 2 of a sludge dryer, such as Figure 1 As shown, it includes: fixing parts 11, which are evenly distributed on the outer surface of the rotor 2; and anti-corrosion components, which are connected to the fixing parts 11; the anti-corrosion components cover the outer surface of the rotor 2 and are used to isolate sludge; a slot 111 is formed between two adjacent fixing parts 11, which is suitable for the anti-corrosion component to be embedded, and then the anti-corrosion component is fixed to the rotor 2 through the fixing parts 11. The surface anti-corrosion device 1 of the rotor 2 of the sludge dryer of the present application is different from the prior art spraying of anti-corrosion and wear-resistant materials. Instead, it is formed by fixing fixing parts 11 on the surface of the rotor 2 to form a slot 111 as a connection method; and then the anti-corrosion component is fixed to the outer surface of the rotor 2 through the connection with the slot 111. Therefore, when the rotor 2 of the sludge dryer is working in the sludge, the anti-corrosion component isolates the sludge and prevents the sludge from entering and coming into contact with the rotor 2 to corrode the surface of the rotor 2. Since the rotor 2 of the sludge dryer is made of carbon steel, it has good rigidity when running at high speed in a high temperature environment, but carbon steel is easily corroded by sludge, so a stainless steel anti-corrosion component is used as protection; stainless steel has good oxidation resistance, corrosion resistance, toughness and processability, and is not afraid of the corrosive substances in the sludge in the working environment. At the same time, its good plasticity makes it easy to create an anti-corrosion component that fits the size of the rotor 2, which can cover the outer surface of the rotor 2 in all directions, achieving a good anti-corrosion effect. The surface anti-corrosion device 1 of the rotor 2 of the sludge dryer of the present application has an extremely simple structure. It only uses two components to be embedded and connected to create a stainless steel protective cover on the outer surface of the rotor 2. After the anti-corrosion component and the fixing member 11 are embedded and connected to form a card groove 111, the anti-corrosion component and the fixing member 11 are fixed by welding or screw connection to enhance the stability of the connection; this device is small in size and occupies little space, which greatly reduces the cost.

[0027] The specific structural features of each component are described below.

[0028] like Figure 2As shown, the fixing member 11 is provided with a plurality of first through-holes 112 extending therethrough, allowing the fixing member 11 to be connected to the anti-corrosion assembly via the first through-holes 112. A row of evenly distributed first through-holes 112 is provided on both sides of each fixing member 11. The first through-holes 112 extend through the fixing member 11. After the fixing member 11 and the anti-corrosion assembly are assembled, the first through-holes 112 are filled with solder for welding, or screwed together for secure connection. The anti-corrosion assembly includes a connector adapted to fit into the slot 111 and be secured to the rotor 2 via the slot 111. The connector has a curved surface, conforming to the surface of the rotor 2. Since the rotor 2 is in the shape of a drum, if the connecting piece is a rectangular parallelepiped or other shape, it is impossible to completely fit the connecting piece to the outer surface of the rotor 2, which will cause the sludge to invade the gaps of the rotor 2 of the sludge dryer during operation, greatly reducing the anti-corrosion effect; therefore, a curved surface structure is adopted to enable the connecting piece to fit the surface of the rotor 2. When all the connecting pieces are embedded in the slots 111, the anti-corrosion component is equivalent to a ring that is tightly attached to the outer surface of the rotor 2, ensuring a good anti-corrosion effect. The first through holes 112 and the second through holes 121 are the same in number and size. The first through holes 112 and the second through holes 121 are aligned and connected, thereby fixing the anti-corrosion component to the rotor 2. The number and size of the first through holes 112 and the second through holes 121 correspond one to one, so they are connected by welding or screws; if the number of the first through holes 112 and the second through holes 121 are different, it is naturally possible, but if some through holes do not correspond to each other, these through holes cannot be used for fixing, have no practical value, and are not practical, so this application will not consider it.

[0029] like Figure 3 、 Figure 4As shown, pads 122 are provided on both sides of the connection between the connector and the slot 111. The pads 122 fit the fixing member 11, thereby strengthening the connection between the anti-corrosion component and the fixing member 11. If only the connector is inserted and snapped into the slot 111, the connector may tilt during the assembly process, resulting in the connector being inserted into the slot 111 but not completely fitting the rotor 2, affecting the anti-corrosion effect. However, if pads 122 are provided on both sides parallel to the fixing member 11, the pads 122 on both sides can be used as guide rails to ensure that the connector fits the rotor 2 after installation. At the same time, the pads 122 can increase the friction between the connector and the fixing member 11, greatly improving the stability of the connection between the connector and the fixing member 11. The pads 122 are provided with a plurality of second through holes 121 extending therethrough, and the anti-corrosion component and the fixing member 11 are connected through the first through holes 112 and the second through holes 121. Each backing plate 122 is provided with a row of evenly distributed second through-holes 121 on both sides. The second through-holes 121 extend through the backing plate 122. After the fixing member 11 and the anti-corrosion assembly are assembled, the first through-holes 112 and the second through-holes 121 can be fixedly connected by soldering. Alternatively, screws can be inserted through the first through-holes 112 and the second through-holes 121 to secure the connection. The anti-corrosion assembly also includes a protective member 123, which is disposed on the backing plate 122. The protective member 123 is connected to the fixing member 11 and covers the upper surface of the fixing member 11 to isolate sludge. The connecting piece completely covers the outer surface of the rotor 2 in the slot 111, while the other parts are covered by the fixing piece 11, ensuring a good anti-corrosion effect; however, the fixing piece 11 is exposed to sludge, which may cause corrosion problems during long-term use. Therefore, the protective piece 123 is used to cover and isolate the fixing piece 11, thereby extending the service life of the fixing piece 11.

[0030] The above describes the basic principles, main features, and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments. The above-described embodiments and the specification merely illustrate the principles of the present application. Various changes and improvements may be made to the present application without departing from the spirit and scope of the present application. These changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A rotor surface anti-corrosion device for a sludge dryer, characterized in that: include: Fixing members, the fixing members are evenly distributed on the outer surface of the rotor; as well as an anti-corrosion component connected to the fixing member; The anti-corrosion component covers the outer surface of the rotor and is used to isolate sludge; A slot is formed between two adjacent fixing members, suitable for the anti-corrosion component to be embedded, and then the anti-corrosion component is fixed to the rotor through the fixing members.

2. The rotor surface anti-corrosion device of the sludge dryer according to claim 1, characterized in that: The fixing member is provided with a plurality of first through holes, so that the fixing member is connected to the anti-corrosion component through the first through holes.

3. The rotor surface anti-corrosion device of the sludge dryer according to claim 2, characterized in that: The anti-corrosion component includes a connector, which is suitable for being embedded in the slot and fixed to the rotor through the slot; the connector is provided with a curved surface, thereby fitting with the surface of the rotor.

4. The rotor surface anti-corrosion device of the sludge dryer according to claim 3, characterized in that: Pads are provided on both sides of the connection between the connecting member and the slot, and the pads are fitted with the fixing member to strengthen the connection between the anti-corrosion component and the fixing member.

5. The rotor surface anti-corrosion device of the sludge dryer according to claim 4, characterized in that: The backing plate is provided with a plurality of second through holes extending therethrough, and the anti-corrosion component and the fixing member are connected in cooperation with each other through the first through holes and the second through holes.

6. The rotor surface anti-corrosion device of the sludge dryer according to claim 4, characterized in that: The anti-corrosion component also includes a protective member, which is arranged on the backing plate; the protective member is connected to the fixing member, and the protective member covers the upper end surface of the fixing member to isolate sludge.

7. The rotor surface anti-corrosion device of the sludge dryer according to claim 5, characterized in that: The first through holes and the second through holes have the same number and the same size, and the first through holes are aligned with and connected to the second through holes, thereby fixing the anti-corrosion component on the rotor.

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