526320 經濟部智慧財產局員工消費合作社印製 A7 B7五、發明説明（1) 本發明有關根據申請專利範圍前文之一種可作爲廢棄 物熱處理工廠之爐柵一部份的爐柵塊。 Ε'Ρ— Α - 0 8 4 4 438號揭露一種焚化工廠 之爐柵，此爐柵由具有曲折狀行進的管狀冷卻元件之爐柵 塊所組成，這些冷卻元件或冷卻管係一體鑄造成一塊體部 ，此塊體部具有對於待處理廢棄物之一頂支撐表面。這些 爐栅塊的造價很昂貴（昂貴的鑄造型式製造，及複雜的鑄 造方法）。此外，無法在冷卻管與鑄造件之間確保具有滿 意的連接，故造成熱傳遞的負面影響。尙且，具有一體鑄 造部份的鑄造件容易呈現顯著的收縮空腔及裂痕，故難以 避免需要費力檢驗且預期會產生高的廢棄率。因爲不具有 裂痕，爐柵塊體部中可容忍收縮空腔或孔隙並且鑄造件必 .須緊密。因此在各塊體部上進行一壓力及洩漏測試，故時 常難以避免複雜的熔接後加工。由於鑄造材料與一體鑄造 的冷卻管之間具有不同的熱膨脹，一體鑄造的冷卻管在蒸 發期間及/或高局部熱負載期間將可能撕裂。在洩漏或受 損的塊體部情形中，冷卻媒體將逸入爐中，且塊體部不再 進行預定功能。此外，在具有一體鑄造的冷卻元件之爐柵 塊情形中，因爲各情形均需要特別的鑄造型式，所以配合 改用不同的需求及負載將是複雜且冗長的過程。 本發明之目的係提供一種引文所述類型的爐柵塊，此 爐柵塊具有很簡單且合乎成本效益的製造方式，其中製成 鑄造件之塊體部不再需要複雜的壓力及洩漏檢驗，並可以 較簡單的方式來適應不同的需求。 本紙張尺度賴中關轉準（eNS)八4規格（21Qx 297公楚） (請先閲讀背面之注意事項再填寫本頁) 526320 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（2) 藉由一種具有申請專利範圍的特徵之爐栅塊來達成根 據本發明之此目的。 因:爲可藉由一底固持部份與塊體部之間的可釋放式連 接將冷卻兀件固定在與塊體部相接觸之一預定位置中，塊 體部不再具有任何不可取及的腔體，可藉由一種簡單標準 的鑄造方法以合乎成本效益的方式製造塊體部，且不需進 行複雜的壓力及洩漏測試。因爲冷卻元件及塊體部彼此分 離且可具有不同的膨脹，故大幅降低了冷卻元件中產生洩 漏或裂痕之危險，冷卻元件此外可由多種不同材料製成並 可具有幾乎任何所需要的形狀。 根據本發明之爐柵塊的較佳發展係形成了申請專利範 圍依附項之主體。 參照圖式更加詳細地說明本發明，其中： 圖1以部份立體圖顯示根據本發明之一種爐柵塊之第 一示範性實施例，其中具有一塊體部、一固持部份及一冷 卻元件； 圖2至4顯示對於根據圖1的爐柵塊之冷卻元件的各 種剖面形狀；及 圖5以縱剖面顯示一種爐栅塊的另一項示範性實施例 〇 主要元件對昭旁 1 :爐柵塊 2 :塊體部 ___1—Γ:___pI (請先閲讀背面之注意事項再填寫本頁) 訂 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29*7公釐） -5- 526320 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（3) 3 :後壁 4 :頂壁5 :前k 6 :鉤 7 :足部 8 :支撐表面 10:冷卻元件 1 1，1 1 ’ ：冷卻通道 1 5，1 5 ’ ：固持部份 1 7 :凹部 2〇：冷卻管 21:冷卻元件 2 2 :冷卻元件 2 3 :冷卻元件 2 4 :冷卻元件 2 5 ··肋 2 8 :冷卻板 2 9 :冷卻元件 3〇：熱傳導材料 3 2 :壓力條 3 3 :支撐表面 3 7 :孔 3 8 :絕緣物 4〇：螺絲 (請先閲讀背面之注意事項再填寫本頁) 衣. 訂 ♦ 本纸張尺度適用中國國家標準（CNS ) A4規格（210X29*7公釐） -6 - 526320 A7 B7 經濟部智慧財產局員工消費合作社印繁 五、發明説明（4) 圖1顯示可作爲廢棄物熱處理工廠之一爐柵一部份的 一爐柵瑰1，爐柵塊1包含一大致U形剖面的塊體部2， 此塊體部2製成一鑄造件並具有一後壁3、一頂壁4及一 前壁5。塊體部2的前壁5係連接至一足部7，頂壁4具 有對於待處理廢棄物之一支撐表面9，後壁3具有一或多 個鉤6，圖1只可看見一個飽，此等鉤預定將爐柵塊1懸 掛在一塊固持元件上。此情形中，利用未圖示的已知方式 ’彼此相鄰配置並懸掛在共同塊固持元件上並較佳爲螺接 式彼此連接之複數個爐柵塊係形成一爐柵塊橫列，爐柵具 有配置於後方彼此呈階梯狀之複數個爐柵塊橫列。各情形 中，一可移除式爐柵塊橫列係依循一固定的爐柵塊橫列， 可移除式爐柵塊橫列係在位於爐柵上的廢棄物材料上施加 一推力及剪效應，使得新的廢棄物表面在廢棄物材料同時 往前移動期間於爐中重覆受到熱處理，此情形中，各爐柵 塊1藉由其足部7以可相對位移方式停靠在下游的爐柵塊 1之支撐表面8上。 現在描述工廠操作期間受到顯著熱應力的塊體部2之 冷卻方式。 圖1以範例顯示提供一冷卻元件1 0藉以冷卻塊體部 2，此冷卻元件1 0係爲曲折狀配置的管形並形成一冷卻 通道1 1且連接至一冷卻水系統，本文“冷卻水”係指一 般所使用的水以及任何其他適當的冷卻液體。冷卻元件 1 0經過支撐表面8底下、往上延伸至前壁5 、並具有下 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X29*7公釐） (請先閱讀背面之注意事項再填寫本頁) 衣·526320 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (1) The present invention relates to a grate block that can be used as part of the grate of a waste heat treatment plant according to the scope of the patent application. Ε′Ρ— Α-0 8 4 4 438 discloses a grate of an incineration plant. The grate is composed of a grate block with a tubular cooling element traveling in a zigzag manner. These cooling elements or cooling pipes are integrally cast into one piece. Body, this block has a top support surface for the waste to be treated. These grate blocks are very expensive to manufacture (expensive casting patterns, and complex casting methods). In addition, a satisfactory connection cannot be ensured between the cooling pipe and the casting, thus causing a negative effect on heat transfer. In addition, castings with integral casting parts tend to show significant shrinkage cavities and cracks, so it is difficult to avoid laborious inspections and high waste rates are expected. Because there are no cracks, shrinkage cavities or pores can be tolerated in the grate block and the casting must be tight. Therefore, a pressure and leak test is performed on each block body, so it is often difficult to avoid complicated post-weld processing. Due to the different thermal expansion between the cast material and the integrally cast cooling tube, the integrally cast cooling tube may tear during evaporation and / or during high local thermal loads. In the case of a leaked or damaged block, the cooling medium will escape into the furnace and the block will no longer perform its intended function. In addition, in the case of a grate block with integrated casting cooling elements, because each case requires a special casting pattern, it will be a complicated and tedious process to adapt to different requirements and loads. The purpose of the present invention is to provide a grate block of the type described in the quotation. This grate block has a very simple and cost-effective manufacturing method, in which the block body of the cast part no longer requires complicated pressure and leak inspections And can be easier to adapt to different needs. The size of this paper is based on the Zhongguanguanquan (eNS) 8-4 specification (21Qx 297). (Please read the precautions on the back before filling out this page.) 526320 A7 B7 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs (2) The purpose according to the invention is achieved by a grate block having the characteristics of a patented scope. Because: the cooling element can be fixed in a predetermined position in contact with the block portion by a releasable connection between the bottom holding portion and the block portion, the block portion no longer has any inaccessibility The cavity can be manufactured in a cost-effective manner by a simple standard casting method without the need for complicated pressure and leak tests. Because the cooling element and the block are separated from each other and can have different expansions, the risk of leaks or cracks in the cooling element is greatly reduced. In addition, the cooling element can be made of many different materials and can have almost any desired shape. The preferred development of the grate block according to the present invention forms the subject of the scope of the patent application. The present invention will be described in more detail with reference to the drawings, in which: FIG. 1 is a partial perspective view showing a first exemplary embodiment of a grate block according to the present invention, which has a body portion, a holding portion and a cooling element; 2 to 4 show various cross-sectional shapes for the cooling element of the grate block according to FIG. 1; and FIG. 5 shows another exemplary embodiment of a kind of grate block in a longitudinal section. Block 2: Block body ___ 1—Γ: ___ pI (Please read the notes on the back before filling this page) The size of the paper is applicable to China National Standard (CNS) A4 (210X29 * 7 mm) -5- 526320 A7 B7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs V. Invention Description (3) 3: Back wall 4: Top wall 5: Front k 6: Hook 7: Foot 8: Support surface 10: Cooling element 1 1, 1 1 ': Cooling channel 1 5, 1 5': Holding portion 17: Recessed portion 20: Cooling tube 21: Cooling element 2 2: Cooling element 2 3: Cooling element 2 4: Cooling element 2 5 ·· Rib 2 8: Cooling plate 2 9: cooling element 30: heat conductive material 3 2: pressure bar 3 3: support surface 3 7: Hole 3 8: Insulator 4〇: Screw (Please read the precautions on the back before filling in this page) Clothing. Ordered ♦ This paper size applies to China National Standard (CNS) A4 (210X29 * 7mm) -6- 526320 A7 B7 Yin Fan, Employees' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of Invention (4) Figure 1 shows a grate grid 1 which can be used as part of a grate of a waste heat treatment plant. The U-shaped cross section of the block portion 2 is made of a casting and has a rear wall 3, a top wall 4 and a front wall 5. The front wall 5 of the block 2 is connected to a foot 7, the top wall 4 has a support surface 9 for one of the waste to be treated, and the back wall 3 has one or more hooks 6, only one of which can be seen in Figure 1. The waiting hook is intended to suspend the grate block 1 on a holding element. In this case, a plurality of grate blocks are arranged adjacent to each other and suspended on a common block holding element and are preferably screw-connected to each other in a known manner (not shown) to form a grate block row. The grid has a plurality of rows of furnace grid blocks arranged in a stepped shape at the rear. In each case, a removable grate block sequence follows a fixed grate block sequence, and a removable grate block sequence applies a thrust and shear force to the waste material located on the grate. Effect, the new waste surface is repeatedly heat-treated in the furnace while the waste material is moving forward at the same time. In this case, each of the grid blocks 1 is parked in a relatively displaceable manner by the foot 7 in the downstream furnace. On the supporting surface 8 of the grid block 1. The manner in which the block portion 2 is subjected to significant thermal stress during plant operation will now be described. FIG. 1 shows by way of example a cooling element 10 provided to cool the block body 2. The cooling element 10 is a tube-shaped configuration and forms a cooling channel 11 and is connected to a cooling water system. "Means generally used water and any other suitable cooling liquid. The cooling element 10 passes under the support surface 8 and extends up to the front wall 5 and has the lower paper size applicable to the Chinese National Standard (CNS) A4 specification (210X29 * 7 mm) (Please read the precautions on the back before filling (This page)
、1T -蠕- -7 - 52632〇 A7 B7 五、發明説明（5) 降至足部7之段1 0 a。藉由可從下抵住塊體部2且可釋 放式連接至塊體部2之一固持部份1 5 ，將冷卻元件1 〇 固持在、與塊體部2相接觸的一位置中。基於此目的’在底 部開啓之一槽或凹部1 7係在平坦的塊體部底側1 6平面 中一體鑄成，此塊體部底側1 6可能具有肋（圖1未顯示 肋），此槽或凹部1 7的形狀係爲冷卻元件1 〇的對偶部 份（冷卻元件1 0可作爲此情形的一型式），冷卻元件 1 〇因而亦包括凹部1 了係當然具有與圖1不同的輪廓’ 或者可對於每個爐柵塊1提供複數個冷卻元件1 〇及凹部 17。 如圖2至4的部份示範性實施例所顯示，冷卻元件或 冷卻通道可具有各種剖面形狀。若不用習知圓形剖面的冷 卻管2 0 (圖2 )，可能適合採用譬如具有正方形或長方 形剖面的冷卻管或冷卻元件2 1 (圖3 )、或具有三角形 剖面的冷卻管或冷卻元件2 2 (圖4 )。如圖所示利用根 據圖2及3之冷卻元件2 3、2 4的範例，冷卻元件亦可 具有肋2 5。然而，如圖所示利用圖4之冷卻元件2 9的 範例，其中具有一個熔接至三個冷卻管2 0 ’的冷卻板 2 8，一冷卻元件亦譬如可包含一冷卻板2 8 (或複數個 冷卻板）或其他冷卻體部。這些冷卻板或冷卻體部可附接 在具有特定熱性危險之位置。 一或多個凹部1 7較佳分別在插入一或多個冷卻元件 1 0或2 0至2 4或2 9之前塗覆或充塡有一熱傳導材料 ，譬如一熱傳導化合物。冷卻兀件1 0或2 0至2 4或 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閲讀背面之注意事項再填寫本頁) 訂 «1. 經濟部智慧財產局員工消費合作社印製 -8- 526320 經濟部智慧財產局員工消費合作社印製 A7 B7___五、發明説明（6) 2 9分別壓入熱傳導化合物中，剝除溢出的熱傳導化合物 ，然後藉由固持部份1 5分別固定冷卻元件1 〇或2 0至 2 4或'2 9。圖中將熱傳導材料標示爲3 0，固持部份 1 5較佳具有壓力條3 2，壓力條3 2如圖2至4所示在 固持部份1 5處以其支撐表面3 3支承抵住塊體部底側 1 6，壓力條3 2係突入凹部1 7、分別支承抵住冷卻元 件1 0或2 0至2 4或2 9並將其固定在相對於塊體部2 的位置中。然而，冷卻元件1 0或20至24或29分別 可藉由固持部份1 5的頂支撐表面3 3直接固定在其位置 中，圖中無法看見固持部份1 5與塊體部2之間的可釋放 式固定或連接；圖1的固持部份1 5中只顯示對於連接螺 絲設置的孔並標爲3 7，若不用螺絲連接，亦可適用一鍵 .式接合件、一快關式連接部或另一種可釋放式連接部。 若不用熱傳導化合物，亦可使用細鋼絨或類似物作爲 熱傳導材料並可能在壓入一或多個冷卻元件之前即插入凹 部1 7中。然而，譬如市售的石墨膏等熱傳導化合物因爲 具有比鋼更高的熱傳導性，使用時將特別有利。 固持部份1 5可能由各種材料（鋼、鋁等）製成’其 可能爲一鑄造件或一金屬片，亦可設計成一格柵。可依需 要在組裝之前，將絕緣物（化合物、墊、發泡玻璃等）在 各別的壓力條3 2之間插入固持部份1 5中，圖1以3 8 標示此絕緣物。然而，亦可在組裝後以絕緣物作爲噴灑化 合物加壓驅入並可充塡腔體。 根據未圖示之另一項爐栅塊實施例的變化，如圖2至 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 、1Τ -9- 526320 A7 B7 經濟部智慧財產局R工消費合作社印製 五、發明説明（7) 4所示的冷卻元件1 〇或2 0至2 4或2 9分別並未插入 塊體部底側1 6中一體鑄造之凹部1 7中，此等冷卻元件 1 〇或：2 0至2 4或2 9可插入固持部份1 5頂表面中之 對應凹部內，並可與固持部份1 5頂表面一起壓抵住塊體 部底側1 6並固定在接觸位置中。此處，同樣地，使用放 入固持部份的凹部中藉以改善或確保接觸之熱傳導材料將 是特別有利的方式，此熱傳導材料較佳爲一熱傳導化合物 。此變化方式中，熱傳導化合物較佳亦分散於固持部份 1 5的頂支撐表面3 3及塊底側1 6之間（亦適用於圖1 至4所描述的變化方式）。 但亦可能不使用熱傳導材料，譬如在用於爐栅的“燃 盡區（burn-out region) ”之爐柵塊中，亦即具有較低熱 負載的地點。 若以特定方式設計冷卻元件（軟或粗表面，大的接觸 區域），亦可能不使用熱傳導材料。若在固持部份1 5的 頂支撐表面3 3與塊底側1 6之間不使用熱傳導化合物， 此位置中亦可能使接觸區域變得粗糙以改善接觸。 相較於具有塊體部中一體鑄造的冷卻管之已知爐柵塊 ，根據本發明之兩種爐柵塊變化方式（固定在塊體部2的 凹部1 7中之冷卻元件；配置於固持部份1 5的凹部1 7 中並一起固定在與塊體部接觸位置之冷卻元件）係具有顯 著的優點。可藉由一種簡單的標準鑄造方法將無不可取及 腔體之塊體部2鑄造成爲一種簡單的鑄造件。因爲幾乎無 收縮空腔或裂痕的危險，塊體部2並不需要壓力或洩漏測 (請先閱讀背面之注意事項再填寫本頁) 訂 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -10- 526320 經濟部智慧財產局員工消費合作社印製 A7 B7五、發明説明（8) 試亦無熔接後加工。冷卻元件及塊體部2彼此分離、亦即 不會彼此固定式連接，故可依據熱負載及不同的熱膨脹係 數而產'k不同的膨脹，而大幅降低冷卻管中產生洩漏或裂 痕的危險。冷卻元件可能由許多不同材料製成並幾乎可具 有任何需要的形狀，可順利地從爐柵底側更換具有冷卻元 件的固持部份1 5，根據本發明之解決方案可允許一種模 組化構造，其可適應爐柵的熱負載（預乾區至燃盡區）。 對於不同需求及負載具有簡單的適應方式；可以簡單的型 式改變將冷卻元件的形狀與尺寸變化納入考量。 藉由將冷卻元件配置於固持部份1 5的凹部1 7中並 一起固定在與塊體部2接觸位置中之變化方式，亦很可能 將原本對於具有另一冷卻系統（空氣式冷卻、另一種水冷 .卻）的爐柵塊所提供之既有塊體部予以改裝，此變化方式 並不需要位於塊體部2中的’凹部1 7，並且現在可根據本 發明對於這些既有塊體部提供一種更容易製造且具有更可 靠操作並更能適應不同需求之冷卻系統。 另一優點在於：根據本發明之冷卻系統得以對於倂排 配置成一塊橫列之所有爐柵塊1使用一種共同冷卻元件， 譬如圖1的曲折狀冷卻管1 0 ，此共同冷卻元件係連接至 一進水口與出水口。至今習慣經由管狀中間件將與塊體部 一體鑄造之相鄰爐柵塊的各別冷卻管彼此連接，由於現在 不需使用中間件，故產生較少的洩漏點並可簡化組裝。 圖5顯示另一種可能的爐栅塊變化方式，其中支承抵 住塊體部2且與其呈現可釋放式連接之底固持部份1 5 ’ 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） (請先閲讀背面之注意事項再填寫本頁) -1^^. 訂 Φ— -11 - 526320 A7 B7 五、發明説明（9) 本身係形成一冷卻元件並具有至少一個冷卻通道1 i，。 固持部份1 5 ’爲一種鑄造件，其中冷卻通道1 i，（或 冷卻通、道1 1 )可直接一體鑄成。同樣地，此變化方式中 ’受到高熱負載的塊體部2並無不可取及的腔體，所以不 具有收縮空腔及裂痕的危險，可藉由標準鑄造方法製造塊 體部2且不需昂貴的測試方法即可使用。冷卻水不會進入 爐中，可由鑄造觀點以最佳方式設計固持部份1 5，並可 順利地予以製造。 因爲此實施例中塊體部2不需要任何特殊的槽或凹部 ’既有的塊體部（依需要略作鑄造型式的配合改用）可再 度配備有固持元件或冷卻元件1 5 ’ 。 譬如圖5所示，可再度藉由螺絲或任何其他已知方式 ，在固持部份1 5 ’與塊體部之間實行可釋放式連接。此 實施例中，同樣地，將一層熱傳導材料施加至固持部份 15’與塊底側1 6之間，或者藉由一種接觸區域的特殊 設計（譬如變得粗糙的表面）來改善接觸。 (請先閱讀背面之注意事項再填寫本頁) 訂 經 濟 部 智 慧 財 產 局 消 費 合 社 印 製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -12-, 1T-worm--7-52632〇 A7 B7 V. Description of the invention (5) Reduced to the foot 7 section 10 a. The cooling element 10 is held in a position in contact with the block portion 2 by holding the block portion 2 from below and releasably connected to a holding portion 15 of the block portion 2. For this purpose, a groove or recess 17 opened at the bottom is integrally cast in the plane of the bottom side 16 of a flat block. The bottom side 16 of this block may have ribs (ribs are not shown in Figure 1). The shape of this groove or recess 17 is the dual part of the cooling element 10 (the cooling element 10 can be used as a type in this case), and thus the cooling element 10 also includes the recess 1 and the system naturally has a difference from FIG. 1. The contours' may alternatively provide a plurality of cooling elements 10 and recesses 17 for each grate block 1. As shown in some exemplary embodiments of FIGS. 2 to 4, the cooling element or the cooling channel may have various cross-sectional shapes. If the conventional cooling pipe 20 (Figure 2) is not used, it may be suitable to use, for example, a cooling pipe or cooling element 2 1 (Figure 3) having a square or rectangular section, or a cooling pipe or cooling element 2 having a triangular section. 2 (Figure 4). Using the example of the cooling elements 2 3, 2 4 according to Figs. 2 and 3 as shown, the cooling elements may also have ribs 25. However, as shown in the figure, an example of using the cooling element 29 of FIG. 4 is provided, which has a cooling plate 28 welded to three cooling pipes 20 ′, and a cooling element may also include a cooling plate 2 8 (or a plurality of cooling plates). Cooling plates) or other cooling bodies. These cooling plates or bodies can be attached in locations with specific thermal hazards. One or more recesses 17 are preferably coated or filled with a thermally conductive material, such as a thermally conductive compound, before inserting one or more cooling elements 10 or 20 to 24 or 29 respectively. Cooling element 10 or 20 to 2 4 or this paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) (Please read the precautions on the back before filling this page) Order «1. Ministry of Economic Affairs Wisdom Printed by the Consumer Cooperative of the Property Bureau-8- 526320 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7___ V. Description of the invention (6) 2 9 Separately pressed into the heat-conducting compound to strip the overflowed heat-conducting compound The holding portion 15 fixes the cooling element 10 or 20 to 24 or '29, respectively. In the figure, the heat-conducting material is marked as 30, and the holding part 15 preferably has a pressure bar 3 2 and the pressure bar 3 2 as shown in FIGS. 2 to 4. The holding part 15 is supported by its supporting surface 3 3 against the block. The bottom side of the body 16 and the pressure bar 3 2 protrude into the recess 17 and support the cooling element 10 or 20 to 24 or 29 respectively and fix it in a position relative to the block 2. However, the cooling element 10 or 20 to 24 or 29 can be directly fixed in its position by the top support surface 3 3 of the holding portion 15 respectively, and it cannot be seen between the holding portion 15 and the block portion 2 in the figure. Releasable fixing or connection; the holding part 15 in Figure 1 only shows the hole provided for the connection screw and is marked as 37. If you do not use a screw connection, you can also use a key. Type joints, a quick-closing type Connection or another releasable connection. If a heat conductive compound is not used, fine steel wool or the like may be used as the heat conductive material and may be inserted into the recess 17 before being pressed into one or more cooling elements. However, thermally conductive compounds such as commercially available graphite pastes are particularly advantageous when used because they have higher thermal conductivity than steel. The holding part 15 may be made of various materials (steel, aluminum, etc.), which may be a casting or a metal sheet, or may be designed as a grille. If necessary, before assembly, insert insulators (compounds, pads, foamed glass, etc.) into the holding parts 15 between the respective pressure bars 32, and this insulator is marked with 3 8 in Figure 1. However, it is also possible to drive the cavity with an insulator as a spray compound after assembly and pressurize it. According to the variation of another embodiment of the grate block not shown, as shown in Figure 2 to this paper size, the Chinese National Standard (CNS) A4 specification (210X297 mm) is applied (please read the precautions on the back before filling this page) 1T -9- 526320 A7 B7 Printed by R Industrial Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of Invention (7) 4 The cooling element 10 or 20 to 2 4 or 2 9 are not inserted into the block part, respectively. In the bottom part 16 of the integrally cast recessed part 17, these cooling elements 10 or: 20 to 24 or 29 can be inserted into the corresponding recessed part of the top surface of the holding part 15 and can interact with the holding part. The top surface 15 is pressed against the bottom side 16 of the block together and fixed in the contact position. Here, too, it would be particularly advantageous to use a thermally conductive material placed in the recess of the retaining portion to improve or ensure contact. The thermally conductive material is preferably a thermally conductive compound. In this variation, the thermally conductive compound is also preferably dispersed between the top support surface 3 3 of the holding portion 15 and the bottom side 16 of the block (also applicable to the variations described in FIGS. 1 to 4). However, it is also possible not to use thermally conductive materials, such as in a grate block for the “burn-out region” of a grate, which is a location with a lower thermal load. If the cooling element is designed in a specific way (soft or rough surface, large contact area), it may not be necessary to use thermally conductive materials. If a heat conductive compound is not used between the top support surface 33 of the holding portion 15 and the bottom side 16 of the block, the contact area may also be roughened in this position to improve the contact. Compared with the known grate block with the cooling pipe integrally cast in the block part, the two grate block variations according to the present invention (the cooling element fixed in the recess 17 of the block part 2; arranged in the holding The cooling element in the recessed part 17 of the part 15 and fixed together in contact with the block part) has significant advantages. A simple casting method can be used to cast the block portion 2 without an undesirable cavity into a simple casting. Because there is almost no danger of shrinking cavities or cracks, the block part 2 does not require pressure or leak testing (please read the precautions on the back before filling this page). 297 mm) -10- 526320 A7 B7 printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (8) There is no post-weld processing. The cooling element and the block portion 2 are separated from each other, that is, they are not fixedly connected to each other, so different expansions can be produced depending on the thermal load and different thermal expansion coefficients, thereby greatly reducing the risk of leakage or cracks in the cooling pipe. The cooling element may be made of many different materials and can have almost any desired shape. The holding part with the cooling element 15 can be smoothly replaced from the bottom of the grate. The solution according to the invention allows a modular construction , Which can adapt to the heat load of the grate (pre-drying zone to burn-out zone). There is a simple way to adapt to different needs and loads; the shape and size of the cooling element can be taken into account in a simple style change. By arranging the cooling element in the recessed portion 17 of the holding portion 15 and fixing it together in the contact position with the block portion 2, it is also possible to change the original design of the cooling element with another cooling system (air cooling, A type of water-cooled grate block provided by the existing block is modified. This variation does not require the 'recess 17' located in the block 2, and these existing blocks can now be used according to the present invention. The department provides a cooling system that is easier to manufacture, has more reliable operation, and is more adaptable to different needs. Another advantage is that the cooling system according to the present invention can use a common cooling element for all grate blocks 1 arranged in a row in a row, such as the zigzag cooling pipe 10 of FIG. 1, which is connected to A water inlet and a water outlet. So far, it has been customary to connect the respective cooling pipes of adjacent grate blocks that are integrally cast with the block body to each other via tubular intermediate pieces. Since intermediate pieces are not required now, fewer leak points are generated and assembly can be simplified. Figure 5 shows another possible variation of the grate block, in which the bottom holding part supporting the block body 2 and showing a releasable connection with it 1 5 'This paper size applies to the Chinese National Standard (CNS) A4 specification (210X 297 mm) (Please read the notes on the back before filling this page) -1 ^^. Order Φ— -11-526320 A7 B7 V. Description of the invention (9) It forms a cooling element and has at least one cooling channel 1 i. The holding portion 15 'is a casting, in which the cooling channel 1 i (or the cooling channel and the channel 1 1) can be directly integrally cast. Similarly, in this variation, 'the block portion 2 subjected to high thermal load has no inaccessible cavity, so there is no danger of shrinking the cavity and cracks, and the block portion 2 can be manufactured by standard casting methods without the need of Expensive test methods are ready to use. The cooling water does not enter the furnace, and the holding portion 15 can be optimally designed from a casting viewpoint and can be smoothly manufactured. Because in this embodiment, the block portion 2 does not require any special grooves or recesses. The existing block portion (which can be replaced with a casting type as needed) can be equipped with a retaining element or a cooling element 15 'again. For example, as shown in FIG. 5, a releasable connection can be implemented between the holding portion 15 ′ and the block portion again by screws or any other known method. In this embodiment, similarly, a layer of thermally conductive material is applied between the holding portion 15 'and the bottom side 16 of the block, or the contact is improved by a special design of the contact area (such as a roughened surface). (Please read the notes on the back before filling this page) Printed by the Ministry of Economic Affairs, Intellectual Property Bureau, Consumer Co., Ltd. The paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) -12-